LM2903AVQDR

Overview

The LM2903AVQDR is a dual differential voltage comparator manufactured by Texas Instruments. It operates on a single or split power supply ranging from 2 V to 36 V. The device features open collector outputs and supports a wide operating temperature range from -40°C to +125°C. Key electrical specifications include a typical response time of 1.3 µs, an input bias current of 250 nA, and a maximum input offset voltage of 4 mV. It is housed in an 8-pin SOIC package.

Feature Summary

• Dual differential voltage comparison capability for precise signal monitoring
• Open collector output configuration allowing flexible interfacing with various logic families
• Wide single-supply voltage operation supporting diverse power environments

Applications

• Overvoltage and undervoltage detection circuits
• Window comparator designs for threshold monitoring
• Temperature sensing interfaces using thermistors

Procurement Notes

Verify the specific suffix 'QDR' against the manufacturer's official datasheet to confirm the exact package type and tape-and-reel specifications. Ensure that the required operating temperature range and electrical parameters align with the design constraints before finalizing procurement orders.

Selection Notes

Select this component when a dual-channel comparator with open collector outputs is required for single-supply applications. Consider the 1.3 µs response time and 4 mV input offset voltage limits to ensure compatibility with the target signal processing speed and accuracy requirements.

Part Context

This part belongs to the LM2903 series of dual differential comparators. It shares functional similarities with the LM193, LM293, and LM393 families but offers specific performance characteristics tailored for general-purpose analog comparison tasks within industrial and consumer electronics.

Replacement Considerations

Direct substitutes include LM2903AVQDRG4 and LM2903AVQPWRG4. Verify pinout compatibility and electrical parameter equivalence before substitution.