MCP33151-05 - Kit d'évaluation Microchip - Free user manual and instructions

USER MANUAL MCP33151-05 Microchip

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Adjacent Key Suppression, AKS, Analog-for-the-Digital Age, Any Capacitor, AnyIn, AnyOut, BlueSky, BodyCom, CodeGuard, CryptoAuthentication, CryptoAutomotive, CryptoCompanion, CryptoController, dsPICDEM, dsPICDEM.net, Dynamic Average Matching, DAM, ECAN, EtherGREEN, In-Circuit Serial Programming, ICSP, INICnet, Inter-Chip Connectivity, JitterBlocker, KleerNet, KleerNet logo, memBrain, Mindi, MiWi, MPASM, MPF, MPLAB Certified logo, MPLIB, MPLINK, MultiTRAK, NetDetach, Omniscient Code Generation, PICDEM, PICDEM.net, PICkit, PICtail, PowerSmart, PureSilicon, QMatrix, REAL ICE, Ripple Blocker, SAM-ICE, Serial Quad I/O, SMART-I.S., SQI, SuperSwitcher, SuperSwitcher II, Total Endurance, TSHARC, USBCheck, VariSense, ViewSpan, WiperLock, Wireless DNA, and ZENA are trademarks of Microchip Technology Incorporated in the U.S.A. and other countries.

SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. The Adaptec logo, Frequency on Demand, Silicon Storage Technology, and Symmcom are registered trademarks of Microchip Technology Inc. in other countries. GestIC is a registered trademark of Microchip Technology Germany II GmbH & Co. KG, a subsidiary of Microchip Technology Inc., in other countries. All other trademarks mentioned herein are property of their respective companies.

© 2019, Microchip Technology Incorporated, All Rights Reserved.

ISBN: 978-1-5224-4713-9

For information regarding Microchip's Quality Management Systems, please visit www.microchip.com/quality.

Table of Contents

Preface 5

Introduction....5

Document Layout 5

Conventions Used in this Guide 6

Recommended Reading....7

The Microchip Website....7

Customer Support 7

Document Revision History 8

Chapter 1. Quick Start Guide for Hardware Setup

Chapter 2. Product Overview

2.1 Introduction ...... 11

2.2 MCP331X1D 16/14/12-Bit, 1 Msps SAR ADC Evaluation Board Features .. 11

2.3 MCP331X1D 16/14/12-Bit, 1 Msps SAR ADC Evaluation Kit Contents ..... 11

2.4 MCP331X1D 16/14/12-Bit, 1 Msps SAR ADC Evaluation Kit Requirements 12

2.5 MCP331X1D 16/14/12-Bit, 1 Msps SAR ADC Evaluation Board Overview . 12

2.6 SAR ADC Device Configuration 14

2.7 PIC32MZ EF Curiosity Development Board (DM320104) Overview ..... 15

2.8 SAR ADC Utility Software Overview 16

Chapter 3. Installation and Operation

3.1 Configuration Requirements 25

3.2 Evaluation Kit Setup 25

Chapter 4. Firmware

4.1 PIC32MZ2048EFM100 Initialization 27

4.2 Data Acquisition 27

4.3 USB Transfer 29

4.4 ADC Functions 30

Appendix A. Schematics and Layout

A.1 Introduction 33

A.2 Board - Schematic (Page 1 of 2) 34

A.3 Board - Schematic (Page 2 of 2) 35

A.4 Board – Top Silk Layer 36

A.5 Board – Top Copper and Silk Layer 37

A.6 Board - Top Copper Layer 38

A.7 Board – Bottom Copper Layer 39

A.8 Board – Bottom Copper and Silk Layer 40

A.9 Board – Bottom Silk Layer 41

Appendix B. Bill of Materials (BOM)

B.1 MCP331X1D Evaluation Board – Bill of Materials (BOM) 43

Worldwide Sales and Service ....49

Preface

NOTICE TO CUSTOMERS

All documentation becomes dated, and this manual is no exception. Microchip tools and documentation are constantly evolving to meet customer needs, so some actual dialogs and/or tool descriptions may differ from those in this document. Please refer to our website (www.microchip.com) to obtain the latest documentation available.

Documents are identified with a "DS" number. This number is located on the bottom of each page, in front of the page number. The numbering convention for the DS number is "DSXXXXXXXXA", where "XXXXXXXXX" is the document number and "A" is the revision level of the document.

For the most up-to-date information on development tools, see the MPLAB ^® IDE online help. Select the Help menu, and then Topics to open a list of available online help files.

INTRODUCTION

This chapter contains general information that will be useful to know before using the MCP331X1D 16/14/12-Bit, 1 Msps SAR ADC Evaluation Kit. Items discussed in this chapter include:

• Document Layout
• Conventions Used in this Guide
• Recommended Reading
  • The Microchip Website
• Customer Support
  • Document Revision History

DOCUMENT LAYOUT

This document describes how to use the MCP331X1D 16/14/12-Bit, 1 Msps SAR ADC Evaluation Kit to demonstrate the performance of the MCP331X1 device family. The manual layout is as follows:

- Chapter 1. “Quick Start Guide for Hardware Setup” – Provides quick, step-by-step information on setting up the MCP331X1D 16/14/12-Bit, 1 Msps SAR ADC Evaluation Kit.

- Chapter 2. “Product Overview” – Important information about the MCP331X1D 16/14/12-Bit, 1 Msps SAR ADC Evaluation Kit.

- Chapter 3. “Installation and Operation” – Includes instructions on how to get started with the MCP331X1D 16/14/12-Bit, 1 Msps SAR ADC Evaluation Kit.

- Chapter 4. "Firmware" - Includes information about the firmware that is included with the MCP331X1D 16/14/12-Bit, 1 Msps SAR ADC Evaluation Kit.

- Appendix A. “Schematics and Layout” – Refer to the board’s web page for the complete Schematics and Layouts.

- Appendix B. “Bill of Materials (BOM)” – Refer to the board’s web page for the complete Bill of Materials.

CONVENTIONS USED IN THIS GUIDE

This manual uses the following documentation conventions:

DOCUMENTATION CONVENTIONS

Description Represents Examples
Arial font:
Italic characters Referenced books	mPLAB	^ IDE User's Guide
	Emphasized text ...is the only compiler...
Initial caps A window the Output	ut window
	A dialog the Settings dialog
	A menu selection select Enable Programmer
Quotes A field name in a window or dialog		"Save project before build"
Underlined, Italic text with right angle bracket	A menu path File>Save	——
Bold characters A dialog button	Click OK
	A tab	Click the Power tab
N'Rnnnn	A number in verilog format, where N is the total number of digits, R is the radix and n is a digit.	4'b0010, 2'hF1
Text in angle brackets <>	A key on the keyboard	Press,,
Courier New font:
Plain Courier New	Sample source code	#define START
	Filenames	autoexec.bat
	File paths	c:\mccl8\h
	Keywords	_asm, _endasm, static
	Command-line options	-Opa+, -Opa-
	Bit values	0, 1
	Constants	0xFF, 'A'
Italic Courier New	A variable argument	file.o, where file can be any valid filename
Square brackets []	Optional arguments	mccl8 [options] file [options]
Curly brackets and pipe character: { | }	Choice of mutually exclusive arguments; an OR selection	errorlevel {0|1}
Ellipses... Replaces repeated text	var_name [,	var_name...]
	Represents code supplied by user	void main (void){ ...}

RECOMMENDED READING

This user's guide describes how to use the MCP331X1D 16/14/12-Bit, 1 Msps SAR ADC Evaluation Kit. Another useful document is listed below. The following Microchip document is available and recommended as a supplemental reference resource.

- MCP33131D/21D/11D-XX Data Sheet – “1 Msps /500 ksps 16/14/12-Bit Differential Input SAR ADC” (DS20005947)

THE MICROCHIP WEBSITE

Microchip provides online support via our website at www.microchip.com. This website is used as a means to make files and information easily available to customers. Accessible by using your favorite Internet browser, the website contains the following information:

• Product Support – Data sheets and errata, application notes and sample programs, design resources, user's guides and hardware support documents, latest software releases and archived software
• General Technical Support – Frequently Asked Questions (FAQs), technical support requests, online discussion groups, Microchip consultant program member listing
• Business of Microchip – Product selector and ordering guides, latest Microchip press releases, listing of seminars and events, listings of Microchip sales offices, distributors and factory representatives

CUSTOMER SUPPORT

Users of Microchip products can receive assistance through several channels:

• Distributor or Representative
- Local Sales Office
- Embedded System Engineer (ESE)
- Technical Support

Customers should contact their distributor, representative or field application engineer (FAE) for support. Local sales offices are also available to help customers. A listing of sales offices and locations is included in the back of this document.

Technical support is available through the website at: http://www.microchip.com/support.

DOCUMENT REVISION HISTORY

Revision C (April 2020)

Updated Table 2-1 in Section 2.5 "MCP331X1D 16/14/12-Bit, 1 Msps SAR ADC Evaluation Board Overview".

Updated Table 2-2 in Section 2.6 "SAR ADC Device Configuration".

Updated Figure 4-2 description in Section 4.2 "Data Acquisition".

Revision B (June 2019)

• Updated figure in Chapter 1. "Quick Start Guide for Hardware Setup"
• Updated figures in Section 2.6 "SAR ADC Device Configuration"
• Updated Appendix A. "Schematics and Layout"
• Updated Appendix B. "Bill of Materials (BOM)"
• Grammar and styling updates

Revision A (April 2018)

- Initial release of this document.

Chapter 1. Quick Start Guide for Hardware Setup

The following nine steps provide a quick start guide for setting up the MCP331X1D 16/14/12-Bit, 1 Msps SAR ADC Evaluation Board and the PIC32MZ EF Curiosity Development Board.

MCP331X1D Evaluation Board PIC32MZ EF Curiosity Development Board MCROCHIP RHO00873 MICROCHIP RHO00873 MICROCHIP RHO00873 MICROCHIP RHO00873 MICROCHIP RHO00873 MICROCHIP RHO00873 MICROCHIP RHO00873 MICROCHIP RHO00873 MICROCHIP RHO00873 MICROCHIP SAR_Adc_Uti lity.exe SAR ADC Evaluation Utility File Help Device Selection: MCP33131D-10 Interface Mode: 3-wire CS without BUSV Input Structure Differential Operating Mode: Continuous Analysis: Sampling Frequency 1000 kHz Electrical Leakage 2 kHz DC Leakage 2 kHz FFT Window Electrons Radiogram Length 26204 FFT Domain: Volts/Time Codes/Time INIL DNL FFT Single Conv. Continuous Stop

FIGURE 1-1: MCP331X1D 16/14/12-Bit, 1 Msps SAR ADC Evaluation Kit (default).

1. On the PIC32MZ EF Curiosity Development Board, move the PWR IN jumper to connect pins, V_IN and V_BUS .
2. Connect the Micro-USB cable from the PC to J12 on the PIC32MZ EF Curiosity Development Board. This USB is used for both power and data transfer for the PIC32MZ EF board.
3. If using a preprogrammed PIC32MZ EF Curiosity Development Board, skip to Step 5. If using a non-programmed version of the PIC32MZ EF Curiosity Development Board, then program the PIC32MZ with the latest MCP331X1D Evaluation Board (ADM00873) Hex file (available on www.microchip.com) using an external programmer (MPLAB® ICD, PICkit™ ICD, etc.) connected to the ICSP™ HDR (J16).
4. Once the firmware is loaded, remove the programmer and wait for LED4 to illuminate with a solid red light. A solid red lit LED indicates that the firmware is loaded and the board is working as intended.
5. Connect the MCP331X1D Evaluation Board (ADM00873) to the top right mikroBUS™ header (J10), as displayed in Figure 1-1.

6. Connect a 9V power supply to the barrel jack connection point using either the supplied 9V wall power supply or, alternatively, connect 9V from an external power source to the H1 headers. D1, directly below the barrel jack, will illuminate to confirm that 9V is being supplied to the evaluation board.

7. Connect either a fully differential or single-ended signal source.

a) When using a Fully Differential signal source:

• Connect positive input to J1 SMA connector
• Connect negative input to J2 SMA connector

b) When using Single-Ended input signal:

• Connect positive input to J1 SMA connector
• Populate jumper at J6 headers to connect the negative input to V REF/2

Note: When the jumper J6 is connected, V_REF/2 is automatically provided to input pin IN- of U1 (ADC driver). The U1 output swings with V_IN+/2 centered at the V_COM voltage. Where V_REF = 4.048V is used in this board.

1. PC GUI: Install and launch SAR_ADC_Utility.exe (available on www.microchip.com). The software will automatically recognize the plugged in device and launch the GUI.
2. Once the GUI is open, use the blue Play button to run single or continuous acquisitions. The GUI will display all performance analysis data related to the acquired signal.

Chapter 2. Product Overview

2.1 INTRODUCTION

This chapter provides an overview of the MCP331X1D 16/14/12-Bit, 1 Msps SAR ADC Evaluation Kit and covers the following topics:

• MCP331X1D 16/14/12-Bit, 1 Msps SAR ADC Evaluation Board Features
- MCP331X1D 16/14/12-Bit, 1 Msps SAR ADC Evaluation Kit Contents
• MCP331X1D 16/14/12-Bit, 1 Msps SAR ADC Evaluation Kit Requirements
• MCP331X1D 16/14/12-Bit, 1 Msps SAR ADC Evaluation Board Overview
• SAR ADC Device Configuration
• PIC32MZ EF Curiosity Development Board (DM320104) Overview
• SAR ADC Utility Software Overview

2.2 MCP331X1D 16/14/12-BIT, 1 MSPS SAR ADC EVALUATION BOARD FEATURES

This MCP331X1D 16/14/12-Bit, 1 Msps SAR ADC Evaluation Kit is a fully assembled, programmed and tested solution to evaluate and demonstrate the MCP33131D operating performance.

The MCP331X1D 16/14/12-Bit, 1 Msps SAR ADC Evaluation Kit features:

• Full-Scale Analog Input Range: -V REF to +V REF
- ADM00873 with Differential Input Configuration: -4 V PP to +4 VPP
- ADM00873 with Single-Ended Input Configuration: 0V to +4 V PP
• Dynamic Performance Monitoring
- Evaluation of Performance Parameters, such as: SNR, SFDR, THD, INL, DNL, Voltage Measurement and so on
- Evaluate Input Signal in Time Domain
- Ability to Save and Load Software Configurations
- Ability to Save and Load Raw Data for User Post-Processing
For information about the device features, refer to the "MCP331X1 Data Sheet".

2.3 MCP331X1D 16/14/12-BIT, 1 MSPS SAR ADC EVALUATION KIT CONTENTS

The MCP331X1D 16/14/12-Bit, 1 Msps SAR ADC Evaluation Board includes the following items:

- MCP331X1D 16/14/12-Bit, 1 Msps SAR ADC Evaluation Board with On-Board Reference ( V_REF = 4V ) (ADM00873)

- PIC32MZ EF Curiosity Development Board, Preprogrammed with SAR ADC Firmware (ADM320104)

• 9V Wall Plug-in Power Supply

- USB Cable from Curiosity PIC32 Development Board to PC

- Important Information Sheet

2.4 MCP331X1D 16/14/12-BIT, 1 MSPS SAR ADC EVALUATION KIT REQUIREMENTS

The MCP331X1D 16/14/12-Bit, 1 Msps SAR ADC Evaluation Board requires:

• Curiosity PIC32MZEF Development Board (DM320104)
• Type A Male to Micro-B USB Cable
- External Signal Input:
- Supplied by the user
• SAR ADC Utility Software (GUI):
- Available on the Microchip website

2.5 MCP331X1D 16/14/12-BIT, 1 MSPS SAR ADC EVALUATION BOARD OVERVIEW

The MCP331X1D 16/14/12-Bit, 1 Msps SAR ADC Evaluation Board is intended to demonstrate the performance of the MCP331X1 device family. This evaluation board is used together with:

- Curiosity PIC32MZEF Development Board (DM320104)

• SAR ADC Utility Software

Figure 2-1 displays the system setup.

graph LR
    A["Signal Input"] --> B["MCP331X1D Evaluation Board (Note 1)"]
    B <-->|SPI| C["Curiosity PIC32MZEF Development Board (DM320104) (Note 2)"]
    C <-->|USB| D["PC GUI (SAR ADC Utility Software) (Note 3)"]
    E["9V Power Supply 5V Power Supplied via USB"] --> B
    F["Note 1: The ADC part is available on this board."] --> B
    G["Note 2: This board collects ADC data from the evaluation board and passes them to the PC GUI."] --> C
    H["Note 3: This GUI provides various user interfaces to test the performance of the MCP331X1 device."] --> C

FIGURE 2-1: MCP331X1D 16/14/12-Bit, 1 Msps SAR ADC Evaluation Kit System Setup.

This evaluation board supports the MCP331X1D-10 device family, which is Microchip Technology's fully differential single channel 12/14/16-bit, 1 Msps SAR Analog-to-Digital Converter (ADC).

The MCP331X1D Evaluation Board comes with the MCP331X1 device on board. All conditions and features can be evaluated using this evaluation board. Refer to Figure 2-2 and Figure 2-3 for photos of the evaluation boards, and refer to Table 2-1 for our currently available fully differential device offerings compatible with this evaluation board.

TABLE 2-1: DEVICES SUPPORTED BY MCP331X1D EVALUATION KIT ^(1)

Part Number	Resolution	Sample Rate	SNR^(1)	SFDR^(1)	Input Configuration
MCP33131D-10	16-bit	1 Msps	91.3 dBFS	103.5 dB	Differential
MCP33151D-10/MCP33121D-10	14-bit	1 Msps	85.1 dBFS	103.5 dB	Differential
MCP33141D-10/MCP33111D-10	12-bit	1 Msps	73.9 dBFS	99.3 dB	Differential
MCP33131D-05	16-bit	500 ksps	91.3 dBFS	103.5 dB	Differential
MCP33141D-05/MCP33121D-05	14-bit	500 ksps	85.1 dBFS	103.5 dB	Differential
MCP33111D-05/MCP33111D-05	12-bit	500 ksps	73.9 dBFS	99.3 dB	Differential

Note 1: SNR and SFDR are measured with f_IN = 10 kHz, V_IN = -1 dBFS, V_REF = 5V .

MUCROCHIP ADM00873 MCP331 x1 Eval Bd. Driver En. SND1 DHUST SN02 SN03 J5 GND1 C33 R23 U1 R3 C26 R19 TIN-1 R24 for B.C ADC SN01 BCLK SN02 C22 R47 TP10 J4 D4 ON J8 C21 J7 TP9 +1.0V C20 R11 TIN+1 T07 FND C13 TP6 3.3V F33 C29 U6 S46 S22 S44 S20 S21 S22 S23 S24 S25 S26 S27 S28 S29 S30 S31 S32 S33 S34 S35 S36 S37 S38 S39 S40 S41 S42 S43 S44 S45 S46 S47 S48 S49 S50 S51 S52 S53 S54 S55 S56 S57 S58 S59 S60 S61 S62 S63 S64 S65 S66 S67 S68 S69 S70 S71 S72 S73 S74 S75 S76 S77 S78 S79 S80 S81 S82 S83 S84 S85 S86 S87 S88 S89 S90

FIGURE 2-2: MCP331X1D 16/14/12-Bit, 1 Msps SAR ADC Evaluation Board, 4V Reference.

Note: The 4V on-board reference can be replaced with an external voltage reference source by removing R60 and supplying a reference voltage at TP7.

2.6 SAR ADC DEVICE CONFIGURATION

Each evaluation board features a 4-way SPST DIP switch (schematic designator: SW1) that allows the user to manually configure the board for a variety of available Microchip SAR ADC devices. Table 2-2 lists each available switch setting. Refer to Figure 3-1 from Chapter 3. "Installation and Operation" to view the location of SW1.

TABLE 2-2: SW1 DEVICE CONFIGURATION SETTINGS

Part Number Resolution	Speed		Input Configuration	SW1 Setting: (ID3:ID2:ID1:ID0)	Notes
MCP33111-05/MCP33141-05 12	500 ksps Single-Ended 0-0-0-0
MCP33111D-05/MCP33141D-05	12 500 ksps	Differential	0-0-0-1
MCP33121-05/MCP33151-05	14 500 ksps Single-Ended 0-0-1-0
MCP33121D-05/MCP33151D-05	14	500 ksps	Differential	0-0-1-1
MCP33131-05	16 500 ksps Single-Ended 0-1-0-0
MCP33131D-05	16	500 ksps	Differential	0-1-0-1
MCP33111-10/MCP33141-10 12	1 Msps Single-Ended 1-0-1-0
MCP33111D-10/MCP33141D-10	12	1 Msps	Differential	1-0-1-1
MCP33121-10/MCP33151-10	14	1 Msps	Single-Ended	1-1-0-0
MCP33121D-10/MCP33151D-10	14	1 Msps	Differential	1-1-0-1
MCP33131-10	16	1 Msps	Single-Ended	1-1-1-0
MCP33131D-10	16	1 Msps	Differential	1-1-1-1	Default

2.7 PIC32MZ EF CURIOSITY DEVELOPMENT BOARD (DM320104) OVERVIEW

Note 1: The PIC32MZ EF Curiosity Development Board is used for data capture from the MCP331X1D Evaluation Board. This board can be purchased with preprogrammed SAR ADC firmware compatible with the MCP331X1D Evaluation Board (ADM00873).

2: The PIC32MZ EF Curiosity Development Board included in the MCP331X1D Evaluation Kit is already preprogrammed with SAR ADC firmware.

The PIC32MZ EF Curiosity Development Board (DM320104) is a fully-integrated, 32-bit development platform featuring the high-performance PIC32MZ EF Series PIC® Microcontroller (PIC32MZ2048EFM100), which is utilized for capturing the digital data received from the MCP331X1D Analog-to-Digital Converter (ADC) Evaluation Board.

Figure 2-1 shows the connection of the PIC32MZ EF Curiosity Development Board directly between the MCP331X1D 16/14/12-Bit, 1 Msps SAR ADC Evaluation Board and the SAR ADC Utility Software.

The Curiosity Development Board (DM320104) connects to the PC through a USB cable, providing the user with two functionalities:

• The ability to send user commands directly to the device from the SAR ADC Utility Software.
• The ability to collect data from the evaluation board and send them to the SAR ADC Utility Software.

Figure 2-3 displays a close-up of the PIC32MZ EF Curiosity Development Board. More information, including user's guides and other resources for the Curiosity Development Board, can be found by visiting www.microchip.com.

FIGURE 2-3: PIC32MZ EF Curiosity Development Board (DM320104).

2.7.1 Using the PIC32MZ EF Curiosity Development Board for Firmware Development Tool

The PIC32MZ EF Curiosity Development Board includes the PICkit™ On-Board (PKOB) debugger based on the PIC24FJ256GB106 USB microcontroller. In addition, it provides the option to use external debuggers, such as MPLAB® REAL ICE™ or MPLAB ICD 3, by connecting to the In-Circuit Serial Programming™ (ICSP™) header, J16.

By default, the on-board debugger is connected to the programming pins (PGEC and PGED) of the PIC32 device. To use an external debugger, remove jumper J2 to disconnect the on-board debugger from driving the programming pins.

Note: More details about this can be found in the “PIC32MZ EF Curiosity Development Board User’s Guide” (DS70005282), available for download at www.microchip.com.

TABLE 2-3: DEBUGGER SELECTION

J2 Jumper Positions
On-Board Debugger External Debugger
Pins 1-2 Shorted Pins 1-2 Open
Pins 3-4 Shorted Pins 3-4 Open

2.8 SAR ADC UTILITY SOFTWARE OVERVIEW

The SAR ADC Utility Software is the Graphical User Interface (GUI) used to communicate with the device and to configure its operating parameters. The software communicates with the ADC through the PIC32MZ EF Curiosity Development Board and a USB cable. When the user interacts with the software, the user's commands are passed to the MCP331X1 device through the PIC32MZ EF Curiosity Development Board. Once the commands are executed by the MCP331X1D Evaluation Board, the software receives the requested data from the PIC32MZ EF Curiosity Development Board. The software then analyzes the data, performs an FFT or other analysis and displays the results. Refer to Figure 2-1 for a diagram of the system setup.

Figure 2-4 through Figure 2-10 show screen captures of the various performance displays available within the SAR ADC Utility.

The SAR ADC Utility Software is available for download at www.microchip.com. For instructions on using the GUI, refer to the software's supporting documentation included with the installation file, as well as within the application Help menu.

FIGURE 2-4: SAR ADC Utility Software Displaying a Typical FFT Waveform.

1. Click the Single Conv. button for a single shot of the conversion results. Click Continuous for continuous repeated conversion results.
2. Click Calibrate to manually send an ADC calibration command. ADC automatically self-calibrates on initial hardware start-up.
3. Device selected automatically based on DIP setting at SW1. See Section 2.6 "SAR ADC Device Configuration" for details.

FIGURE 2-5: SAR ADC Utility Software Displaying a Single Acquisition Bit Position Digital Output.

1. This feature is only available in Single Conversion One-Shot mode.
2. Select Single-Shot from Operating Mode drop-down menu to enable the single acquisition bit position digital output display.
3. V_REF value must be manually entered based on the ADC's supplied V_REF . ADM00873 defaults on board to V_REF = 4V .

This feature is very useful for the MCU firmware developer for using a known input signal, and seeing the output code and voltage to validate the firmware.

FIGURE 2-6: INL DNL Performance Display.

1. Select INL DNL from the Domain menu in order to enable INL DNL Measurement mode.

FIGURE 2-7: Codes vs. Time Display.

1. Select Codes/Time from the Domain menu in order to enable the ADC Output Codes vs. Time display.

The display represents the digitized code value that corresponds to the input signal amplitude in time domain.

FIGURE 2-8: Codes vs. Time Display (Zoomed).

1. Select the +/- magnifying glass, then click and drag on the screen to zoom in and out. The data cursor can be selected to hover over the wave form and see the exact code value at any point in the display.

FIGURE 2-9: Input Signal Voltage Amplitude vs. Time Display.

1. Select Volts/Time from the Domain menu in order to enable the ADC Input Signal Voltage vs. Time display.
2. V_REF value must be manually entered based on the ADC's supplied V_REF . ADM00873 defaults on board to V_REF = 4V .

This display shows the digitized input signal with the voltage amplitude reconstructed based on the supplied voltage reference value.

FIGURE 2-10: Volts vs. Time Display (Zoomed).

NOTES:

Chapter 3. Installation and Operation

3.1 CONFIGURATION REQUIREMENTS

To power up and run the evaluation kit, the following are required:

• SAR ADC Utility Software
• MCP331X1D 16/14/12-Bit, 1 Msps SAR ADC Evaluation Board
• PIC32MZ EF Curiosity Development Board (DM320104)
- Type A Male to Micro-B USB Cable
- External Signal Source, Differential or Single-Ended Output (see Section 3.2.1 "Input Signal")

3.1.1 Power Input Connection

This MCP331X1D Evaluation Board comes with a 9V wall plug-in switching power supply (CUI INC P/N: SWI12-9-N-P6). This power supply is able to provide a 9V, 1.2A maximum output. It can be connected to an AC wall outlet rated between 100V AC and 240V AC, at a frequency of 50 Hz to 60 Hz. The other end of the power supply is a 2.1 mm barrel plug that connects to the MCP331X1D Evaluation Board (see

Figure 3-1). If the user chooses to connect a different external power supply, a minimum output of 500 mA is required, with a voltage output between 6V-12V. There is no on-board 9V regulator, so the 9V OUT pin (TP4) will read a voltage equal to the voltage input value selected by the user.

WARNING

Avoid connecting a power supply with a voltage greater than what is recommended in this user guide. Doing so can damage the voltage regulators, requiring them to be replaced.

3.2 EVALUATION KIT SETUP

1. Connect the MCP331X1D Evaluation Board and the PIC32MZ EF Curiosity Development Board, as shown in Figure 3-1.
2. Connect the PIC32MZ EF Curiosity Development Board to a computer using a Type A male to Micro-B USB cable. In order to power the Curiosity Board through USB, the USB cable must be plugged into the USB connection located at J12. In addition to this, the headers located at J8 need to have the jumper connecting the V_BUS pin to V_IN . Figure 3-1 shows the component locations.
3. Power up the MCP331X1D Evaluation Board using the provided 9V power supply.
4. Connect a differential or single-ended analog input signal to the MCP331X1D Evaluation Board SMA terminals. For single-ended operation, populate jumper J6 (see Figure 3-1 for jumper location). By populating this jumper, the negative signal input will be tied to V_REF/2 ( V_COM ). Another option is to terminate the negative signal input (J2) with 0Ω. This can be done by shorting C34.
5. Run the SAR ADC Utility Software. See Section 2.8 "SAR ADC Utility Software Overview".

Analog Inputs ADC Power Circuit MCP331X1D 16/14/12-Bit, 1 Msps SAR ADC Evaluation Board (ADM00873) VCOM(VREF/2 for S.E. Source) Jumper (J6)) -1V/GND Driver Input Select (J4) Driver Enable (J8) Differential Driver (U1) VREF Regulator (U2) MCP6286 Op Amp (U5) ADC Device (U3) Curiosity Power Source Selection Header (J8) USB Power Supply (J12) MICROCHIP ADH00873 HCP331x1 Eval Bd. MICROCHIP Configuration Switch (SW1) MICROCHIP Microchip Curiosity PIC32 MZ EF LED1 LED2 LED3 S1 +3.3U GND +3.3U CATTIN PIC32MZ EF Curiosity Development Board (DM320104)

FIGURE 3-1: The MCP331X1D 16/14/12-Bit, 1 Msps SAR ADC Evaluation Board (ADM00873) connected to the PIC32MZ EF Curiosity Development Board (DM320104).

3.2.1 Input Signal

The best way to evaluate the MCP331X1D device is to use a clean analog input signal with as little noise as possible and no harmonic contents. The AP2722 Audio Analyzer from Audio Precision can be used to generate a clean analog signal for evaluation purposes. If using a less pure signal source, a filter can be added between the signal source and EVB to remove any noise outside of the desired frequency.

Chapter 4. Firmware

4.1 PIC32MZ2048EFM100 INITIALIZATION

MPLAB ^® X IDE and MPLAB Harmony were used to develop the firmware for the PIC32MZ2048EFM100 on the PIC32MZ EF Curiosity Development Board (DM320104).

The MCU runs at 130 MHz and the SPI prescaler is set to perform a division by 2 in order to obtain an SPI clock frequency of 65 MHz. This is the minimum SPI speed required to successfully read 16 bits of data out of the ADC at 1 Msps.

In the firmware for this demo, a USB stack was used to achieve communication with the GUI. Direct Memory Access (DMA) was used together with SPI and Output Compare in order to acquire data, and to gate the clock during acquisition.

In this demonstration, the ADC acquisition is triggered by the CONV pulse (RPD5), which is generated by the OC2. The OC2 is generated by Timer3 (OCTSEL = 1). Timer3 is also used to generate OC1 which triggers the DMA SPI transfer. Because both the SPI transfer and CONV pulse are generated by the same timer, they are synchronous. Figure 4-1 displays the timing diagram between the CONV pulse and SPI transfer.

Tek Run Trig d a 130.32μs ----_110_1_ b 131.03μs ----_111_1_ Δ704.40ns SPI(MOSI) FF FF SPI(MISO) 0E 28 FF FF QB D8 CLK MISO CONV MOSI 200ns 2.50GS/s D-4 →130.6664μs 100k points 1.40 V D15-D0 Timing Resolution: 2.00ns 8 Aug 2017 11:21:07 Bus Search events found: 41

FIGURE 4-1: SPI Transfer and CONV Pulse.

The reason for using OC2 and not SS is related to Electromagnetic Interference (EMI). By using OC2, the user can control the timing between the falling edge of the CONV pulse and SPI transfer, and also the timing between the data transfer and CONV rising edge/ADC conversion start. For best EMI performance, it is recommended to keep a few nanoseconds between the SPI data transfer and ADC conversion start.

The ADC's data conversion time is fixed (700 ns for the MCP33131D-10), but the input acquisition time (300 ns for 1 Msps sampling rate) can be increased by the user for a lower sampling rate. The ADC output data are transferred during the input acquisition time (300 ns for 1 Msps sampling rate).

It is important to reduce external noises during the data conversion time for accurate performance (i.e., higher SNR and SFDR). The high-speed SPI operation can disturb the ADC's data conversion during the data conversion time. Therefore, it is highly recommended to allow at least 10 ns of quiet time between the last edge on the SPI clock/data and the rising edge on the ADC conversion start pulse.

FIGURE 4-2: Input Acquisition (Input Sampling) and Data Conversion of the ADC Operation Sequence. See the product data sheet for details.

Once the data are transferred from the ADC to SPI, the DMA will place it in a 8192 word buffer (ADC_BUFFER[ ]). Since the sampling speed is 1 Msps, this buffer will be updated every 8.1 ms, making timing less critical for other tasks.

The GUI requires a larger amount of data to be processed in order to indicate accurate performance characteristics: FFT, THD, SINAD, etc. Because of this, a larger data buffer is created in RAM (storage[]) with a length of 262144 bytes. 32 DMA transfers are required to fill this buffer. The flowchart in Figure 4-3 provides a simple overview of the sample acquisition process and an overview of the entire firmware process.

graph TD
    A["Start (Power On)"] --> B["USB Transfer Commands"]
    B --> C["Request Device ID (0x60)"]
    C --> D["Configure SPI Speed (0x81)"]
    D --> E["4 Sampling Speeds: 1000 ksps, 500 ksps, 250 ksps, 125 ksps"]
    E --> F["Request Single Shot (0x50)"]
    F --> G["In this Mode, the Hardware SPI SPI is Disabled and Switched to Software SPI with a Lower Speed. It will Acquire One Sample and Enable the Hardware SPI Again."]
    G --> H["Calibrate ADC (0x70)"]
    H --> I["ADC Self-Calibration"]
    I --> J{Self-Calibration Complete}
    J -->|No| K["Get Calibration Status (0x71)"]
    J -->|Yes| L["Validate ADC Calibrated"]
    L --> M{ADC Calibrated?}
    M -->|NoYes| N["[0x71, 0x1"] Chip is Calibrated]
    M -->|Yes| O["[0x71, 0x0"] Chip is Uncalibrated]
    O --> P["Transfer Data to GUI (0x80)"]
    P --> Q{USB Transfer Packet Ready}
    Q -->|No| R["Construct USB Transfer Packet: (32768 bytes of sampled data + 512 bytes configuration and settings information)"]
    R --> S["Transmit USB Transfer Packet to GUI"]
    S --> T{USB Transfer Packet Ready}
    T -->|Yes| U["Calculate ADC Transmits Converted Data (SPI)"]
    U --> V["MCU Receives Incoming Data (SPI)"]
    V --> W{Double Buffering: SPI DMA CH1, SPI DPA CH2}
    W --> X["Store Incoming Data in ADC_BUFFER["] (8192 bytes)]
    X --> Y{ADC_BUFFER[] Full}
    Y -->|No| Z["Transfer ADC_BUFFER["] Contents_to_Storage[] (262144 bytes)]
    Z --> AA{>32768 Bytes in Storage()]
    AA --> AB{Increase to 32768 Bytes in Storage()]
    AB --> AC{Increase to 32768 Bytes in Storage()]
    AC --> AD["CNVST Set to Logic Low"]
    AD --> AE{CRC Input Conversion}
    AE -->|Yes| AF["CNVST Rising Edge Detected"]
    AE -->|No| AG["CNVST Set to Logic Low"]
    AF --> AH{CRC Input Conversion Complete}
    AH -->|Yes| AI["CNVST Set to Logic Low"]
    AH -->|No| AJ["Output to Sample ADC Input (Standby Mode)"]
    AJ --> AK{Sample ADC Input (Standby Mode)}
    AK -->|No| AL["Output to Sample ADC Input (Standby Mode)"]
    AK -->|Yes| AM["Output to Sample ADC Input (Standby Mode)"]

FIGURE 4-3: Firmware Flowchart.

4.3 USB TRANSFER

The MCU firmware implements a WinUSB device to handle the data transfer between the USB host (a PC for example) and the USB device (evaluation board).

Each USB transfer has a length of 33280 bytes out of which the first 512 bytes are configuration and setting bytes. The remaining 32768 bytes will contain samples. This will require eight logical transfers to be executed (Figure 4-4). The physical USB layer will split the 33280 byte packets into 512 byte chunks before transmitting on the USB bus.

512 bytes for configuration 32768 bytes – samples 33280 bytes USB transfer packet

FIGURE 4-4: USB Transfer Frame.

4.4 ADC FUNCTIONS

In addition to the actual sample transfer from MCU to PC, there are other ADC functions available: Calibration, Read Device ID and Sampling Speed Change.

The PC not only receives data from the EVB, but it also sends 512 bits of data back to the MCU. The 512-bit length size is required because of the USB high-speed endpoint size. Out of these, only the first five are meaningful. The first element, receivedDataBuffer[0], indicates to the MCU the desired function. For 0x80, the MCU will send samples. For 0x81, the transfer is stopped and the MCU RAM is filled with samples from the ADC. The code will not perform transfers in the same time as the acquisition of ADC samples.

The calibration function is executed when value 0x70 is received. Calibration status function has code 0x71. Table 4-1 provides the command structure byte values sent to, and the responses from, the PIC32MZ2048EFM100 on the PIC32MZ EF Curiosity Development Board (DM320104). Figure 4-5 displays the timing diagram of the calibration process.

TABLE 4-1: COMMAND STRUCTURE BYTE VALUES

Command	receivedDataBuffer[x]			transmitDataBuffer[x]				Description
	Byte[0]	Byte[1] Byte[2]	Byte[3]	Byte[0]	Byte[1]	Byte[2]	Byte[3] Byte[4] Byte[5]
Send Samples	0x80 —	[0 to 7]	Package Index	0x80	0x00 —	—	332	80-byte reply,[0-511] – Irrelevant,[512-33279] – Data samples,Combine the read data into a 16b signed value as follows:dataH: dataL = read[odd index]:read—even index]
Change Sampling Speed	0x81 —	1	-4Sampling Speed	0x81	0x01 —	—	Select sampling speed from Byte[3] and change transmitDataBuffer[1] = 0x80 to start sending data
				0x80	0x01	—	—
Calibrate ADC	0x70	—	—	0x70	0x01	—	—	[0x70, 0x01] – Command received successfully,[0x70, 0x00] – Error
Calibration Status	0x71	—	—	0x71	0x01	—	—	[0x71, 0x01] – Calibration successful,[0x71, 0x00] – Calibration failed
Acquire Single Sample	0x50	—	—	0x50	MSb	LSb	—	[0x50, ADCHighByte, ADCLowByte]
Read Device ID	0x60	—	—	0x60	—	—	—	[0x60, chip ID]

Tek Stop 3.56ms 010 6.85ms 000 Δ3.072ms SPI(MOSI) SPI(MISO) CLK MISO CONV MOSI 2.00ms 500MS/s D4\ 1.678906ms 10M points 1.40 V D15-D0 Timing Resolution: 2.00ms Bus Search events found: 2 8 Aug 2017 12:00:05 Mode Record FastAcq Delay Horizontal Waveform XY Display Sample Length Off On Off Position Display Off

FIGURE 4-5: ADC Calibration.

The Read Device ID code is 0x60. In order to retrieve the Chip ID, more Read registers are required. Figure 4-6 describes the Read register command format.

To retrieve the samples, the GUI will send to the MCU information on the packet required to be received as an index, which is a number from 0 to 7. This index is sent to the MCU in receivedDataBuffer[4].

Another function controlled by the GUI is the sampling speed change. There are four available sampling speeds. These are selected in accordance with the value received in receivedDataBuffer[3]. The sampling speed is controlled by changing the prescaler of the reference system clock.

Tek PreVu SPI(MISI) MISI: 95 MISO: SC 00 SPI(MISO) MISO: 3F MISO: FF 80 CLK MISO CONV MOSI 4.00μs 2.50GS/s D-4\ 142.9064 μs 1M points 1.40 V D15-00 Timing Resolution: 2.00rs Bus Search events found: 12 8 Aug 2017 11:39:42

FIGURE 4-6: Read Register from ADC.

NOTES:

Appendix A. Schematics and Layout

A.1 INTRODUCTION

This appendix contains the following schematics and layouts for the MCP331X1D 16/14/12-Bit, 1 Msps SAR ADC Evaluation Board with 4 VREF (ADM00873):

• Board – Schematic (Page 1 of 2)
• Board – Schematic (Page 2 of 2)
• Board – Top Silk Layer
• Board – Top Copper and Silk Layer
• Board – Top Copper Layer
• Board – Bottom Copper Layer
• Board – Bottom Copper and Silk Layer
• Board – Bottom Silk Layer

A.2 BOARD - SCHEMATIC (PAGE 1 OF 2)

Reference: 4.096V SW1 is Device ID setting. This Device ID is read out from GUI. Differential Input GND GND DIN-DRIVER Circuit Capacitor N GND GND DIN-DRIVER Circuit Capacitor N GND GND DIN-DRIVER Circuit Capacitor N GND GND DIN-DRIVER Circuit Capacitor N GND GND DIN-DRIVER Circuit Capacitor N GND GND DIN-DRIVER Circuit CapacitorN GND GND DIN-DRIVER Circuit CapacitorN GND GND DIN-DRIVER Circuit CapacitorN GND GND DIN-DRIVER Circuit CapacitorN GND GND DIN-DRIVER Circuit CapacitorN GND GND DIN-DRIVER Circuit CapacitorO GND GND DIN-DRIVER Circuit CapacitorO GND GND DIN-DRIVER Circuit CapacitorO GND GND DIN-DRIVER Circuit CapacitorO GND GND DIN-DRIVER Circuit CapacitorO GND GND DIN-DRIVER Circuit CapacitorN GND GND DIN-DRIVER Circuit CapacitorN GND GND DIN-DRIVER Circuit CapacitorO GND GND DIN-DRIVER Circuit CapacitorO GND GND

Note 1: DNP = Do Not Populate. The components with DNP are not populated on the board.
Note 2: This board can be configured for a Single-Ended input using one of the following two options:
Option A: Short J6's two pins. This will set VCOM (VREF/2 = 2V) voltage at J2 (VIN1-). Apply analog input to J1 only.
Option B: Short C34, and apply analog input at J1 only.
Note 3: If other than 4V Reference is needed, disconnect J7 from U2 output and apply the Reference Voltage at J7.

A.3 BOARD - SCHEMATIC (PAGE 2 OF 2)

Note 1: DNP = Do Not Populate. The components with DNP are not populated on the board. Note 2: Adding Ferrite Bead (FB4, FB5) Improves SNR (\~3dB) and SFDR (\~10dB).

A.4 BOARD - TOP SILK LAYER

MICROCHIP ADM00873 R1 MCP331X1D-XX Eval Bd. VREF/2 J6 GND1 TP1 GND3 CT1 Hi + GND Ex1 PHR +5.5V R49 R48 R9 C33 R22 R1 J4 +5.5V R6 R5 R4 R7 C16 F8 U1 Driver En. OFF ON J8 U2 R36 +5.5V C43 TP5 C41 R26 C42 U9 FB1 C44 R33 R57 L5 5.5V REG 5.5V R19 R18 R11 R25 TP9 +1.8V C31 R51 R24 for S.E INI+ R10 +1.8V C59 C11 C5 U5 C32 U6 +4V TP7 F88 C3 C4 C5 R38 +4V SDI SCK C10 C4 TP6 3.3V 9V OUT TP4 9U OUT 9U OUT GND4 CNV SDO RD5 REF4 RB3 FB3 C18 C17 R35 C19 C14 U4 AGND 9V OUT TP4 9U OUT 9U OUT CNV SCK SDI RI3 SDO SHI FB6 DGND 9V Main PHR +L6 GND Device ID Selection TP8 +3.3V from HCU

A.5 BOARD - TOP COPPER AND SILK LAYER

MICROCHIP ADM00873 R1 MCP331X1D-XX Eval Bd. EVI Supply 5.5V REG 4V REF C20 R52 R12 R39 R43 C11 U5 TP6 +1.8V R25 R38 TP6 +1.8V R43 C11 R38 TP6 +1.8V R25 R38 TP6 +1.8V R43 C11 R38 TP6 +1.8V R25 R38 TP6 +1.8V R43 C11 R38 TP6 +1.8V R25 R38 TP6 +1,8V R43 C11 R38 TP6 +1,8V R25 R38 TP6 +1,8V R43 C11 R38 TP6 +1,8V R25 R38 TP6 +1,8V R43 C11 R38 TP6 +1,8V R25 R38 TP6 +1,8V R43

A.6 BOARD - TOP COPPER LAYER

Top-down view of a printed circuit board layout with traces, pads, and components (no readable text or symbols)

A.7 BOARD - BOTTOM COPPER LAYER

04-10726-R1

A.8 BOARD - BOTTOM COPPER AND SILK LAYER

Earth GND R61 C8 1 C23 04-10726-R1 R58 R59 R60 R2 C12 1 R42 R53 +3.3V from MCU J10_B AGND +5V from MCU DGND Digital GND J10_A

A.9 BOARD - BOTTOM SILK LAYER

Earth GND R61 C8 C23 R58 R59 R60 R2 C12 R42 R53 R44 J10_A AGND +3.3V from MCU +5V from MCU DGND Digital GND

NOTES:

Appendix B. Bill of Materials (BOM)

B.1 MCP331X1D EVALUATION BOARD – BILL OF MATERIALS (BOM)

TABLE B-1: MCP331X1D EVALUATION BOARD – BILL OF MATERIALS (BOM) ^(1)

Qty.	Reference Description	on Manufacturer Part Number
4 C1	C10, C15, C59	Capacitor, Ceramic, 0.1 μF, 16V, 10%, X7R, SMD, 0603	AVX Corporation 0603	YC104KAT2A
1 C1	Capacitor, Ceramic	1 μF, 25V, 10%, X7R, SMD, 0603	TDK Corporation	CGA3E1X7R1E105K080AC
0 C12	Capacitor, Ceramic, 0.1 μF, 16V, 10%, X7R, SMD, 0603		AVX Corporation 0603	YC104KAT2A
4 C13	C18, C31, C43	Capacitor, Ceramic, 10 μF, ±10%, 25V, X5R, MLCC, 0805	Murata Electronics North America, Inc.	GRM21BR61E106KA73L
4 C14	C25, C41, CT1	Capacitor, Tantalum, 10 μF, 20V, 10%, 2.1Ω, SMD, B	AVX Corporation TAJB	106K020RNJ
3 C17	C26, C42	Capacitor, Ceramic, 2.2 μF, 50V, 10%, X7R, SMD, 1206	TDK Corporation	CGA5L3X7R1H225K160AB
3 C19	C32, C44	Capacitor, Ceramic, 470 pF, 50V, 10%, X7R, SMD, 0603	Johanson Technology Inc.	500R14W471KV4T
3 C2	C16, C20	Capacitor, Ceramic, 1 μF, 16V, 10%, X7R, SMD, 0603	TDK Corporation	C1608X7R1C105K
1 C21	Capacitor, Tantalum, 22 μF, 16V, 10%, 2.3Ω, SMD, B		AVX Corporation TAJB	22226K016R
4 C3	C8, C9, C22	Capacitor, Ceramic, 1 μF, 16V, 10%, X5R, SMD, 0603	AVX Corporation 0603	YD105KAT2A
0 C33	0.062 μF, 1206, Ceramic, 50V, 5%, COG		Murata Electronics®	GRM31C5C1H623JA01L
0 C34	0.062 μF, 1206, Ceramic, 50V, 5%, COG		Murata Electronics	GRM31C5C1H623JA01L
2 C35, C37	Multilayer Ceramic Capacitors MLCC - SMD/SMT, 0603, 1800 pF, 50V, COG, 2%		Murata Electronics North America, Inc.	GCM1885C1H182GA16J
1 C4	Capacitor, Ceramic, 1 μF, 16V, 20%, Y5V, SMD, 0805		AVX Corporation 0805	YG105ZAT2A
3 C45, C47, C52	Capacitor, Ceramic, 4.7 μF, 25V, 10%, X7R, SMD, 0805		TDK Corporation	C2012X7R1E475K125AB
1 C46	Capacitor, Ceramic, 0.1 μF, 50V, 10%, X7R, SMD, 0805		Yageo Corporation	CC0805KRX7R9BB104
1 C48	Capacitor, Ceramic, 22 μF, 16V, 20%, X5R, SMD, 1206		Panasonic® - ECG	ECJ-3YB1C226M
2 C49, C50	Capacitor, Ceramic, 22 μF, 25V, 10%, X7R, SMD, 1210		Samsung Electro-Mechanics America, Inc.	CL32B226KAJNFNE
Qty.	Reference	Description	Manufacturer	Part Number
1 C5	Capacitor, Ceramic	2.2 μF, 16V, 10%, X5R, SMD, 0603	TDK Corporation C160	8X5R1C225K
1 C51	Capacitor, Ceramic	10 μF, 50V, 20%, X7S, SMD, 1210	TDK Corporation C322	5X7S1H106M
1 C6	Capacitor, Tantalum	10 μF, 16V, 20%, 8Ω, SMD, A	KEMET T491A106M01	6AS
1 C60	Capacitor, Ceramic	1 μF, 16V, 10%, X7R, SMD, 0603	Yageo Corporation CC	0603KRX7R7BB105
1 C64	Capacitor, Ceramic	1 μF, 25V, 20%, X5R, SMD, 0603	Panasonic® - ECG ECJ	-1V41E105M
2 C7	C23 Capacitor, Ceramic	100 pF, 25V, 10%, NP0, SMD, 0603	AVX Corporation 0603	3A101KAT2A
1 D1	Diode, LED, Red, 2V, 30 mA, 2 mcd, Clear, SMD, 0603		Lite-On®, Inc. LTST-C1	90EKT
1 D2	Diode, Schottky, 30V, 1A, POWERDI323		Diodes Incorporated®	PD3S130L-7
1 D3	Diode, Rectifier, 1N4148, 855 mV, 300 mA, 75V, SOD-323		Diodes Incorporated	1N4148WS-7-F
1 D4	Diode, Rectifier, MMBD1503A, 1.1V, 200 mA, 200V, SMD, SOT-23-3		Fairchild Semiconductor®	MMBD1503A
8 FB1	FB2, FB3, FB4, FB5, FB6, FB7, FB8	Ferrite Bead, 1 kΩ, 0603, 1LN	Wurth Elektronik	742792662
4 GND1	GND2, GND3, GND4	Connector, Test Point, Loop, Black, TH	Keystone Electronics Corp.	5011
1 H1	Connector, Terminal	3.5 mm, 6A, Female, 1x2, TH, R/A	Keystone Electronics Corp.	8722
0 IN1+, IN1-, TP7	Connector, HDR-2.54, Male, 1x1, Gold, 5.97MH, TH, Vertical		Samtec, Inc.	TSW-101-07-L-S
2 J1, J2	Connector, RF Coaxial, SMA, Female, TH, R/A		TE Connectivity Alcoswitch	5-1814400-1
2 J10_A, J10_B	Connector, HDR-2.54, Male, 1x8, Gold, 5.84MH, TH		FCI	68001-108HLF
2 J3, J6	Connector, HDR-2.54, Male, 1x2, Gold, 5.84MH, TH, Vertical		FCI	77311-118-02LF
0 J4, J8	Connector, HDR, 1.27 mm, TH, Gold, 3POS		Harwin Plc.	952-3599-ND
1 J5	Connector, Power Jack, Male, 2.5 mm, CLSD		CUI Inc.	PJ-002B
0 J7	Connector, HDR-1.27, Male, 1x2, Gold, TH, Vertical		Harwin Plc.	952-3598-ND
1 JP1	Mechanical, HW, Jumper, 2.54 mm, 1x2, w/Handle		TE Connectivity Alcoswitch	880584-4
1 L5	Fixed Inductor, 47 μH, 2A, 135 MΩ, SMD		Bourns®, Inc.	SRR1240-470M
1 L6	Fixed Inductor, 1 MH, 250 MA, 6Ω, TH		Wurth Elektronik	7447462102
1	L8	Fixed Inductor, 1 μH, 1A, 60 MΩ, SMD	Murata Electronics North America, Inc.	LQH32CN1R0M33L
1 L9	Fixed Shielded Power Inductor, 4.7 μH		Coilcraft LPS3015-472	MLB
5 PAD1, PAD2, PAD3, PAD4, PAD5		Mechanical HW Rubber Pad, Cylindrical, D7.9, H5.3, Black	3M SJ61A11
1 PCB1 Printed Circuit Board		Board - MCP331X1D 16/14/12-Bit, 1 Msps SAR ADC Evaluation Board	Microchip Technology Inc.	04-10726-R1
1 PS1 AC/DC, Wall Mount Adapter, 9V, 12W, 1.2A, 2.5 mm, I.D			CUI Inc. SWI12-9-N-P6
2 R1, R9 Resistor, Thin Film, 20R, 1%, 1/16W, SMD, 0603			Stackpole Electronics, Inc.	RNCP0603FTD20R0
2	R10, R11	Resistor, Thin Film, 10 kΩ, 0.1%, 1/10W, SMD, 0603	Panasonic® - ECG	ERA-3AEB103V
1	R12	Resistor, Thin Film, 10 kΩ, 1%, 1/16W, SMD, 0603	TE Connectivity Alcoswitch	5-1879337-9
1	R13	Resistor, Thick Film, 30 kΩ, 5%, 1/10W, SMD, 0603	Panasonic - ECG	ERJ-3GEYJ303V
4 R14, R15, R16, R17		Resistor, Thick Film, 10 kΩ, 5% 1/10W, SMD, 0603	Panasonic - ECG	ERJ-3GEYJ103V
2 R18, R19	Resistor, Thick Film, 0R, SMD, 0402		Panasonic - ECG	ERJ-2GE0R00X
0 R2, R61	Resistor, Thick Film, 0R, 1/10W, SMD, 0603		Panasonic - ECG	ERJ-3GSY0R00V
2 R20, R39	Resistor, Thick Film, 0R, 1/16W, SMD, 0402		Yageo Corporation	RC0402JR-070RL
0 R21, R45	Resistor, Thick Film, 0R, 1/16W, SMD, 0402		Yageo Corporation	RC0402JR-070RL
0 R22, R23, R24	Resistor, Thick Film, 0R, SMD, 0402		Panasonic - ECG	ERJ-2GE0R00X
1	R25	Resistor, Thick Film, 7.15 kΩ, 1%, 1/10W, SMD, 0603	Panasonic - ECG	ERJ-3EKF7151V
3 R26, R32, R40	Resistor, Thick Film, 1R, 1%, 1/10W, SMD, 0603		ROHM Semiconductor	KTR03EZPF1R00
1	R27	Resistor, Thick Film, 82 kΩ, 1%, 1/10W, SMD, 0603	Panasonic - ECG	ERJ-3EKF8202V
0	R28	Resistor, Thick Film, 35.7 kΩ, 1%, 1/10W, SMD, 0603	Vishay/Dale	CRCW060335K7FKEA
1	R29	Resistor, Thick Film, 14 kΩ, 1%, 1/8W, SMD, 0805	Panasonic - ECG	ERJ-6ENF1402V
2 R3, R8 Resistor, Thick Film, 24R, 1%, 1/10W, SMD, 0603			Yageo Corporation	RC0603FR-0724RL
1	R30	Resistor, Thick Film, 280 kΩ, 1%, 1/10W, SMD, 0603	Panasonic - ECG	ERJ-3EKF2803V
1	R31	Resistor, Thick Film, 56 kΩ, 1%, 1/8W, SMD, 0805	Vishay/Dale	CRCW080556K0FKEA
11 R33, R38, R42,R48, R49, R50,R51, R56, R58,R59, R60		Resistor, Thick Film, 0R, 1/10W,SMD, 0603	Panasonic®- ECG ERJ-3GSY0R00V
1 R34 Resistor, SMD, 143 kΩ, 1%,1/10W, 0603			Bourns, Inc. CR0603-FX-1433ELF
1 R35 Resistor, SMD, 237 kΩ, 1%,1/10W, 0603			StackpoleElectronics, Inc.	RMCF0603FT237K
1 R36 Resistor, Thick Film, 10.5R, 1%,1/10W, SMD, 0603			Vishay/Dale CRCW060310R5FKEA
5 R4, R5, R6, R7,R37		Resistor, Thin Film, 1 kΩ, 0.1%,1/10W, SMD, 0603	Panasonic - ECG ERA-3AEB102V
1	R41	Resistor, Thick Film, 348 kΩ,1/10W, 1%, SMD, 0603	StackpoleElectronics, Inc.	RMCF0603FT348K
1	R43	Resistor, Thick Film, 13.3 kΩ,1%, 1/10W, SMD, 0603	StackpoleElectronics, Inc.	RMCF0603FT13K3
4 R44, R53, R54,R55		Resistor, Thick Film, 33R, 1%,1/10W, SMD, 0603	ROHMSemiconductor	MCR03EZPFX33R0
1 R46 Resistor, Thick Film, 158 kΩ, 1%,1/10W, SMD, 0603			Yageo Corporation RC0603FR-07158KL
1 R47 Resistor, Thick Film, 0R, 1/8W,SMD, 0805			Panasonic - ECG ERJ-6GEY0R00V
1	R52	Resistor, Thick Film, 47 kΩ, 1%,1/10W, SMD, 0603	Panasonic - ECG ERJ-3EKF4702V
1	R57	Resistor, Thick Film, 2 kΩ, 1%,1/10W, SMD, 0603	Panasonic - ECG ERJ-3EKF2001V
1 SCR1 Mechanical HW Machine Screw,Pan Phillips, 4-40, NYLON			B&FTM Fasteners Supply	H544-ND
1 STANDOFF1 Mechanical HW Standoff,#4-40 x 3/4", F/F, Hex, Nylon			KeystoneElectronics Corp.	1902D
1 SW1 Switch Dip, 4-POS, Slide, SMD,6V			Nidec CopalElectronics, Inc.	CHS-04TB
7 TP1, TP4, TP5,TP6, TP8, TP9,TP10		Connector, HDR-2.54, Male,1x1, Gold, 5.97MH, TH, Vertical	Samtec, Inc.	TSW-101-07-L-S
1 U1 MCHP Analog Op Amp,MCP6D11-MG16, QFN-16			MicrochipTechnology Inc.	MCP6D11-MG16
1 U10 MCHP Analog Switcher Buck,2V to 15V, MCP16301T-I/CHY,SOT-23-6			MicrochipTechnology Inc.	MCP16301T-I/CHY
1 U2 MCHP Analog VREF, 4.096V,MCP1501T-40E/CHY, SOT-23-6			MicrochipTechnology Inc.	MCP1501T-40E/CHY
1 U3 MCP33131D-10-I/MS MicrochipTechnology Inc.				MCP33131D-10-I/MS
3 U4, U6, U9		MCHP Analog LDO, 2.5V-5V,MIC5219YMM, MSOP-8	MicrochipTechnology Inc.	MIC5219YMM
1 U5 IC Op Amp GP, 3.5 MHz, RRO,SOT23-5			MicrochipTechnology Inc.	MCP6286T-E/OT

Note 1: The components listed in this Bill of Materials are representative of the PCB assembly. The released BOM used in manufacturing uses all RoHS-compliant components.

NOTES:

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