LM2903DRE4

Overview

The LM2903DRE4 is a dual differential voltage comparator from the LMx93/LM2903 family, manufactured by Texas Instruments. It features two independent comparators designed for single-supply operation over a wide voltage range of 2V to 30V. The device includes an open-collector output compatible with TTL, MOS, and CMOS logic families. Key electrical characteristics include a maximum supply current of 2.5mA, a typical response time of 1.3µs, and an input bias current of 25nA. It operates within a temperature range of -40°C to 125°C and is housed in an SOIC-8 package.

Feature Summary

• Dual independent voltage comparators designed for single-supply operation
• Open-collector outputs compatible with various logic families
• Wide common-mode input voltage range including ground potential

Applications

• Vacuum robot systems
• Single phase UPS units
• Server power supply monitoring
• Motor drive control circuits

Procurement Notes

Verify the specific ordering suffix 'RE4' against the manufacturer's official documentation to confirm tape-and-reel packaging specifications and RoHS compliance status. Ensure the component matches the exact pinout and thermal characteristics defined in the datasheet 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 30V maximum supply voltage limit and the 1.3µs propagation delay for timing-sensitive designs. Verify that the industrial temperature range meets the environmental requirements of the target application.

Part Context

This part belongs to the industry-standard LMx93/LM2903 comparator family. It serves as a foundational analog signal processing component used for threshold detection and level shifting. The device is widely utilized in consumer electronics and industrial automation due to its robust performance across varying supply voltages and temperatures.

Replacement Considerations

The LM2903B is documented as a drop-in replacement offering improved specifications such as lower offset voltage and higher supply voltage capability.