LM2901M/NOPB

Overview

The LM2901M/NOPB is a low-power, low-offset voltage quad comparator manufactured by Texas Instruments. It features four independent channels housed in a 14-SOIC surface-mount package. The device operates on a single supply ranging from 2V to 36V or dual supplies of ±1V to ±18V. Key electrical specifications include a maximum input offset voltage of 7mV and an input bias current of 250nA. The output type is open collector, compatible with TTL, MOS, and CMOS logic families.

Feature Summary

• Quad configuration providing four independent voltage comparison channels within a single integrated circuit
• Low power consumption characteristics suitable for battery-operated applications
• Wide operating voltage range supporting both single and dual power supply configurations
• Open-collector outputs allowing wired-AND connection capabilities

Applications

• General-purpose analog signal processing circuits
• Battery-powered monitoring systems requiring low quiescent current
• Level detection interfaces between different logic families
• Temperature sensing threshold detection circuits

Procurement Notes

Verify the specific suffix NOPB indicates lead-free and RoHS compliance status according to the manufacturer's latest documentation. Confirm the SOIC-14 package dimensions match the target PCB footprint requirements. Ensure the operating temperature range aligns with the intended environmental conditions. Cross-reference the datasheet revision date to confirm parameter validity against current design specifications.

Selection Notes

Select this component when multiple independent comparators are required in a compact surface-mount form factor. The low input offset voltage ensures accurate threshold detection without significant calibration. The wide common-mode input voltage range simplifies interface design with various sensor types. Consider the open-drain output structure when designing pull-up resistor networks for the desired logic levels.

Part Context

This part belongs to the LM2901 family of quad comparators, which are industry-standard replacements for older discrete comparator solutions. The LM2901 series is widely used in industrial and consumer electronics due to its balance of performance and cost. The NOPB suffix denotes a lead-free and environmentally friendly manufacturing process compliant with global regulatory standards.

Replacement Considerations

LM2901DR serves as a pin-compatible alternative in the SOIC-14 package. LM2901PWR offers equivalent functionality in a TSSOP-14 package with minor dimensional differences. LM2901N provides the same electrical characteristics in a through-hole PDIP-14 package.