LM2903A-SR

Overview

The LM2903A-SR is a dual independent voltage comparator manufactured by 3PEAK in an SOP-8 package. It operates on a single supply of +2.5 V to +36 V or dual supplies of ±1.25 V to ±18 V. Key electrical specifications include a quiescent current of 150 μA per channel, a maximum input offset voltage of ±6.0 mV, and a maximum input bias current of 1 nA at 25°C. The device supports an operating temperature range from −40°C to 125°C and features open-collector outputs capable of wired-AND configurations.

Feature Summary

• Low power consumption with supply current independent of voltage
• Input common-mode voltage range includes ground potential
• Direct interface compatibility with TTL and CMOS logic families
• Open-collector outputs allow for wired-AND logic implementation

Applications

• High-speed line or digital line receivers
• Peak and zero-crossing detectors
• Threshold detectors and discriminators
• Sensing applications at ground or supply lines

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official order information table to confirm package type, moisture sensitivity level, and transport media. Ensure the selected variant matches the required operating temperature range and RoHS compliance status before finalizing procurement orders.

Selection Notes

Select this component when low power drain is critical for battery-operated systems requiring direct interfacing with standard logic families. The wide common-mode input range including ground makes it suitable for single-supply sensing applications where inputs may approach the negative rail.

Part Context

This device belongs to the LM2903A/LM2901A series of 36-V low-power comparators produced by 3PEAK. The series integrates single, dual, or quad independent comparators on a monolithic substrate. The LM2903A-SR specifically denotes the dual-channel version housed in an SOP-8 package.

Replacement Considerations

Publicly confirmed substitute part numbers are not provided in the source documentation.