LM2903QPWRRBG4

Overview

The LM2903QPWRRBG4 is a dual differential comparator from Texas Instruments, housed in an 8-TSSOP package. It features open-collector outputs with rail-to-rail capability and supports single or dual power supplies ranging from 2 V to 36 V. The device operates within a temperature range of -40°C to +125°C, drawing a typical supply current of 1 mA to 2.5 mA. Key electrical specifications include a propagation delay of 1.3 µs, an input offset voltage of 4 mV, and an input bias current of 25 nA.

Feature Summary

• Dual differential comparators integrated into a compact 8-pin surface-mount package
• Open-collector outputs compatible with CMOS and TTL logic families
• Wide single-supply operating voltage range from 2 V to 36 V
• Rail-to-rail input capability for extended common-mode voltage handling

Applications

• General-purpose analog signal comparison circuits
• Over-voltage and under-voltage detection systems
• Window comparator configurations
• Temperature sensing threshold monitoring

Procurement Notes

Verify the specific suffix 'BG4' against the official Texas Instruments datasheet to confirm exact manufacturing lot codes, tape-and-reel specifications, and RoHS compliance status. Ensure the ordering part number matches the required automotive or industrial grade variants if applicable. Cross-reference the manufacturer's latest documentation to validate pinout compatibility and recommended operating conditions before finalizing procurement orders.

Selection Notes

Select this component when dual independent comparison functions are required in space-constrained designs. The open-collector output allows flexible interfacing with various logic levels through external pull-up resistors. Consider the 4 mV input offset voltage for precision applications requiring accurate threshold detection. The wide supply voltage range makes it suitable for battery-powered or variable voltage environments.

Part Context

This part belongs to the LM2903 family of dual differential comparators manufactured by Texas Instruments. It shares functional similarities with other members like the LM2903PWRG4 but may differ in specific packaging or qualification grades. The TSSOP-8 package provides a compact footprint suitable for modern PCB layouts while maintaining standard pin configurations for easy integration into existing designs.

Replacement Considerations

Direct substitutes include LM2903PWRG4 and LM2903AVQPWRG4Q1. Verify pinout compatibility and electrical parameter alignment, particularly regarding supply voltage limits and propagation delays, before implementing any cross-replacement.