LM2901M/SL161623

Overview

The LM2901M is a quad differential comparator manufactured by Texas Instruments, housed in a 14-pin SOIC surface-mount package. It operates on single or dual power supplies ranging from 2V to 36V (single) or ±1V to ±18V (dual). Key electrical parameters include a typical response time of 1.3µs, an input offset voltage of 7mV, and an input bias current of 250nA. The device features open-collector outputs compatible with CMOS and TTL logic families, supporting a maximum output current of 6mA per channel. It functions within a temperature range of -40°C to +125°C.

Feature Summary

• Integrates four independent differential comparators in a compact SOIC-14 package for space-constrained designs.
• Provides wide supply voltage flexibility, supporting both single-ended and split-rail configurations up to 36V.
• Features open-collector outputs that ensure compatibility with various digital logic standards including CMOS and TTL.

Applications

• General-purpose analog signal comparison circuits
• Voltage monitoring and threshold detection systems
• Oscillator and pulse generation circuits

Procurement Notes

Verify the specific suffix 'SL161623' against official Texas Instruments documentation to confirm it denotes a standard commercial grade variant rather than a restricted automotive or military specification. Ensure the ordering part number matches the exact pinout and thermal characteristics required for your PCB layout. Cross-reference with the latest datasheet revision to confirm compliance with current RoHS directives and material declarations before finalizing procurement.

Selection Notes

Select this component when a low-power, quad-channel solution is required for general-purpose voltage sensing. It is suitable for applications where moderate speed (1.3µs) is acceptable and cost-efficiency is prioritized over high-speed performance. Consider the open-collector output limitation if direct push-pull drive is needed without external pull-up resistors. Evaluate the 7mV offset voltage tolerance against the precision requirements of your specific signal conditioning stage.

Part Context

The LM2901 series belongs to Texas Instruments' family of low-power, low-offset voltage quad comparators. It serves as a functional equivalent to the industry-standard LM339, offering similar pinouts and electrical characteristics. The 'M' suffix typically indicates a plastic small-outline package variant. This series is widely used in industrial control, battery management, and consumer electronics where multiple voltage thresholds must be monitored simultaneously.

Replacement Considerations

Direct pin-compatible substitutes include the LM339 and LM2901N. Verify that alternative packages maintain the same SOIC-14 footprint and thermal dissipation capabilities. Ensure that any replacement part meets the 36V maximum supply voltage and -40°C to +125°C operating temperature range specified for the original design.