LMV7251M7

Overview

The LMV7251M7 is a single, low-voltage comparator manufactured by National Semiconductor. It features rail-to-rail input capability and operates within a supply voltage range of 1.8 V to 5.0 V. The device utilizes an SC-70-5 package. It provides push-pull output functionality suitable for general-purpose applications requiring low power consumption and wide input voltage ranges in compact designs.

Feature Summary

• Rail-to-rail input stage allows operation with signals extending to the supply rails.
• Push-pull output structure ensures robust signal driving capabilities.
• Designed for low-voltage operation starting at 1.8 V.
• Compact SC-70-5 package facilitates space-constrained PCB layouts.

Applications

• Low voltage battery-powered systems
• General purpose signal comparison
• Threshold detection circuits

Procurement Notes

Verify the manufacturer designation as National Semiconductor or Texas Instruments, noting that Texas Instruments acquired National Semiconductor's analog division. Confirm the specific suffix 'M7X' or 'M7' matches the required tape-and-reel or tube packaging configuration. Ensure the component meets RoHS compliance requirements if specified for the target application environment.

Selection Notes

Select this component when a single comparator with rail-to-rail inputs is required for low-voltage applications. It is appropriate for designs operating between 1.8 V and 5.0 V where space is limited due to the SC-70-5 package. Consider the push-pull output type for direct interfacing with digital logic without additional pull-up resistors.

Part Context

This part belongs to the LMV725x family of low-voltage comparators from National Semiconductor. The family includes variants such as the LMV7255, which shares similar electrical characteristics but may differ in pinout or internal configuration. These devices are designed to replace older bipolar comparators in modern low-power, low-voltage electronic systems.

Replacement Considerations

Public confirmed substitute part numbers include LMV7255M7X. Verify pin compatibility and functional equivalence before substitution. Other family members like LMV7271 or LMV7291 offer similar rail-to-rail input features but may have different pin configurations or performance specifications.