LM2901MX

Overview

The LM2901MX is a quad differential comparator manufactured by Texas Instruments, housed in an SOIC package. It features four independent channels with open-collector outputs compatible with CMOS, DTL, ECL, MOS, and TTL logic families. The device operates on a single or dual power supply ranging from 2V to 32V. Key electrical specifications include a maximum input offset voltage of 7mV at 5V, a maximum input bias current of 0.25µA at 5V, and a typical response time of 1.3µs. It supports a wide operating temperature range from -40°C to +125°C.

Feature Summary

• Integrates four independent high-gain differential comparators within a single compact package.
• Provides versatile output compatibility with standard digital logic families including CMOS, TTL, and ECL.
• Operates effectively across a broad single-supply voltage range up to 32V.
• Designed for low-power applications while maintaining low input offset voltage characteristics.

Applications

• General-purpose analog signal comparison circuits
• Voltage monitoring systems
• Logic level shifting interfaces

Procurement Notes

Verify the specific suffix 'MX' against the manufacturer's official datasheet to confirm pinout and package dimensions, as variations exist within the LM2901 family. Ensure the component meets RoHS compliance requirements if mandated by your project standards. Cross-reference the ordering information with authorized distributors to confirm availability and authenticity before procurement.

Selection Notes

Select this component when multiple independent comparisons are required in space-constrained designs. It is suitable for applications needing compatibility with various logic families without additional interface circuitry. Consider the 1.3µs response time for speed requirements and the 32V maximum supply voltage for higher voltage sensing tasks compared to lower-voltage alternatives.

Part Context

The LM2901 series belongs to Texas Instruments' portfolio of low-power, low-offset voltage quad comparators. This family is designed to replace older discrete comparator solutions, offering improved performance and reduced board space. The LM2901MX variant specifically utilizes the SOIC package format, providing a surface-mount solution for modern electronic assemblies requiring reliable analog-to-digital conversion interfaces.

Replacement Considerations

LM2901D: Pin-compatible alternative in SOIC-14 package. LM2901N: Through-hole DIP-14 equivalent. LM139: Similar quad comparator with comparable electrical characteristics.