LM2901PWG4

Overview

The LM2901PWG4 is a quad differential comparator manufactured by Texas Instruments, housed in a 14-pin TSSOP surface-mount package. It operates on single or dual power supplies, supporting voltage ranges of 2V to 36V for single supply and ±1V to ±18V for dual supply configurations. The device features open-collector outputs compatible with TTL, CMOS, and MOS logic families. Key electrical parameters include a typical response time of 1.3µs, input bias current of 250nA, and input offset voltage of 7mV. It functions within an operating temperature range of -40°C to +125°C.

Feature Summary

• Integrates four independent differential comparators within a compact surface-mount package
• Supports wide single and dual power supply voltage ranges for flexible system integration
• Features open-collector outputs capable of wired-AND connection for logical operations
• Maintains low power consumption and low input bias current across the operating temperature range

Applications

• General-purpose analog signal comparison circuits
• Voltage monitoring and threshold detection systems
• Interface between analog sensors and digital logic controllers
• Over-voltage and under-voltage protection circuits

Procurement Notes

Verify the specific suffix 'G4' indicates lead-free RoHS compliance during procurement. Confirm the package type is TSSOP-14 as specified by the model designation. Ensure the supplier provides documentation confirming the automotive or industrial grade if required by the application environment. Cross-reference the manufacturer part number with official Texas Instruments databases to validate authenticity and revision status before ordering.

Selection Notes

Select this component when multiple independent voltage comparisons are required in a space-constrained design. The TSSOP package offers a smaller footprint compared to PDIP alternatives. Consider the 1.3µs response time against application speed requirements. Verify that the open-collector output configuration aligns with the pull-up resistor requirements of the downstream logic circuitry.

Part Context

The LM2901 series belongs to Texas Instruments' family of low-power, low-offset voltage quad comparators. The 'P' suffix denotes the TSSOP package, while 'G4' signifies lead-free construction compliant with RoHS standards. This variant serves as a modern replacement for older through-hole versions, maintaining pin compatibility and electrical characteristics while adapting to automated surface-mount assembly processes.

Replacement Considerations

• LM2901DR
• LM2901PWR
• LM2901N