LM2903DR-EV

Overview

The LM2903DR-EV is a dual differential comparator manufactured by EVVO, housed in an 8-pin SOIC surface-mount package. It operates on single or split supplies with a voltage range of 2.0 V to 30 V (single) and 1.0 V to 15 V (split). The device features very low current drain of 0.4 mA, independent of supply voltage. Key electrical characteristics include a maximum input offset voltage of 15 mV and a typical response time of 1300 ns. It supports open-collector outputs compatible with TTL, MOS, and CMOS logic families.

Feature Summary

• Dual differential comparator architecture for independent signal processing
• Wide operating voltage range supporting both single and split power supplies
• Low current consumption independent of supply voltage variations
• Open-collector output configuration enabling wired-AND functionality

Applications

• Signal processing circuits
• Sensor interface applications
• Instrumentation systems

Procurement Notes

Verify the manufacturer designation as EVVO against standard Texas Instruments part numbers, as this suffix may indicate a specific distributor or regional variant. Confirm RoHS3 compliance and moisture sensitivity level 1 status during sourcing. Ensure the 8-SOIC package dimensions match your PCB footprint requirements. Cross-reference the 1300 ns response time and 15 mV offset voltage limits with your design specifications to ensure adequate performance margins.

Selection Notes

Select this component when a dual comparator with wide supply flexibility is required. The open-collector output allows easy interfacing with various logic families without additional pull-up components in some configurations. Consider the 0.4 mA quiescent current for battery-sensitive designs. Verify that the 1300 ns propagation delay meets the speed requirements of your application compared to faster alternatives.

Part Context

This part belongs to the LM2903 family of dual comparators, widely used in general-purpose analog switching and threshold detection. Similar parts include the LM393 and LM2903 variants from other manufacturers. The DR suffix typically denotes the SOIC-8 tape-and-reel packaging format. The EVVO branding suggests a specific supply chain channel rather than the original silicon designer.

Replacement Considerations

Direct pin-compatible substitutes include the LM393DR and LM2903DR from Texas Instruments. Verify that replacement parts meet the same 30 V maximum supply voltage and 0.4 mA current drain specifications. Check if alternative packages are available in your preferred form factor.