LMV7239M5

Overview

The LMV7239M5 is a single-channel, ultra-low power, low-voltage analog comparator manufactured by Texas Instruments. It operates within a supply voltage range of 2.7 V to 5.5 V and features rail-to-rail input capability, allowing the common-mode voltage to extend 200 mV beyond both ground and the positive supply rail. The device provides a push-pull output stage, eliminating the need for external pull-up resistors. Key electrical characteristics include a propagation delay of 75 ns and a quiescent current consumption of 65 µA at 5 V.

Feature Summary

• Rail-to-rail input stage enables operation with signals grounded or referenced to the positive supply.
• Push-pull output architecture supports direct interfacing without requiring external load components.
• Ultra-low power design maintains minimal current draw while delivering fast response times.

Applications

• Battery-powered portable electronics requiring extended operational life
• Threshold detection circuits in low-voltage systems
• Signal conditioning for microcontroller input interfaces

Procurement Notes

Verify that the specific part number suffix matches the required package type, as the LMV7239 series includes variants such as M5 (SOT-23) and M7 (SC-70). Confirm RoHS compliance status and ensure the supplier documentation aligns with the requested tape-and-reel or cut-tape packaging format. Cross-reference the manufacturer's latest datasheet to validate pinout configurations before integration.

Selection Notes

Select this component when system constraints demand low supply voltage operation combined with high-speed threshold detection. The push-pull output is preferred over open-drain versions if board space for external resistors is limited. Ensure the application environment stays within the specified temperature range and that input signal levels remain compatible with the rail-to-rail input specifications.

Part Context

This device belongs to the LMV723x family of comparators designed for space-constrained, battery-operated applications. It shares architectural similarities with the LMV7235 but differs in output configuration, offering a push-pull stage instead of an open-drain output. The family targets general-purpose comparison tasks where power efficiency and small footprint are critical design parameters.

Replacement Considerations

The LMV7239M7/NOPB serves as a functional substitute with identical electrical performance but utilizes an SC-70-5 package instead of SOT-23-5. Verify pin compatibility and physical dimensions before substitution to ensure mechanical fit within the existing PCB layout.