LM2903M/NOPB - Electronic component TEXAS INSTRUMENTS - Free user manual and instructions
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| Product Type | Dual Differential Comparator (Integrated Circuit) |
| Manufacturer | Texas Instruments |
| Model | LM2903M/NOPB |
| Package | SOIC-8 (surface mount) |
| Number of Channels | 2 (dual) |
| Supply Voltage Range | 2V to 36V (single supply) or ±1V to ±18V (dual supply) |
| Input Offset Voltage | Typically 1mV, maximum 7mV |
| Response Time | 1.3 µs (typical) |
| Output Type | Open Collector |
| Operating Temperature Range | -40°C to +85°C |
| Dimensions | Approximately 4.9mm × 3.9mm × 1.25mm |
| Weight | Approximately 0.08g |
| Power Consumption | Quiescent current 0.4mA (typical per comparator) |
| RoHS Compliance | Yes (lead-free NOPB designator) |
| Maintenance | No maintenance required; handle with standard ESD precautions |
| Safety | Do not exceed maximum ratings; operate within recommended conditions |
| Spare Parts & Repairability | Integrated circuit; not repairable, replace component if faulty |
| General Information | Dual differential comparator for industrial and automotive applications |
Frequently Asked Questions - LM2903M/NOPB TEXAS INSTRUMENTS
What is the LM2903M/NOPB?
The LM2903M/NOPB is a dual differential comparator integrated circuit from Texas Instruments. It compares two input voltages and provides an open-collector output.
What is the difference between LM2903 and LM393?
The LM2903 is functionally similar to the LM393 but has a wider operating temperature range of -40°C to +85°C and slightly different electrical specifications. Both are dual comparators with open-collector outputs.
What is the supply voltage range of the LM2903?
The LM2903 can operate from a single supply of 2V to 36V or with dual supplies of ±1V to ±18V. This wide range makes it versatile for various applications.
Can the LM2903 operate with a single supply?
Yes, the LM2903 is designed for single-supply operation. The input common-mode range includes ground, allowing direct interface with single-supply systems.
What are typical applications of the LM2903?
Typical applications include voltage comparison, threshold detection, zero-crossing detectors, analog-to-digital converters, and switching regulators.
Why does the LM2903 have an open-collector output?
The open-collector output allows the comparator to drive loads referenced to a different supply voltage, enabling level shifting and wire-OR connections. An external pull-up resistor is required.
How should I handle the LM2903 during assembly?
The LM2903 is an ESD-sensitive component. Use anti-static wrist straps, grounded work surfaces, and avoid touching the pins directly. Follow standard ESD-safe handling procedures.
What is the package type and dimensions?
The LM2903M/NOPB comes in an SOIC-8 surface-mount package. The approximate dimensions are 4.9mm × 3.9mm × 1.25mm.
What is the operating temperature range?
The LM2903M/NOPB is rated for an industrial temperature range of -40°C to +85°C, making it suitable for harsh environments.
How do I connect the open-collector output?
Connect a pull-up resistor from the output to the desired logic or supply voltage. The resistor value depends on the load and speed requirements. Typical values range from 1kΩ to 10kΩ.
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USER MANUAL LM2903M/NOPB TEXAS INSTRUMENTS
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Brand : TEXAS INSTRUMENTS
Model : LM2903M/NOPB
Category : Electronic component