LMC7221BIMX

Overview

The LMC7221BIMX is a single-channel, low-power, high-voltage CMOS analog comparator manufactured by Texas Instruments. It features rail-to-rail input capability and an open-drain output configuration. The device operates within a supply voltage range of 2.7 V to 15 V. Key electrical characteristics include a typical response time of 400 ns and a maximum quiescent current of 30 µA per channel. It is housed in an 8-SOIC surface-mount package.

Feature Summary

• Rail-to-rail input stage allows signal detection near both supply rails
• Open-drain output simplifies interfacing with various logic families
• Low power consumption suitable for battery-operated applications

Applications

• Threshold detection circuits
• Voltage monitoring systems
• Over-voltage protection schemes

Procurement Notes

Verify the specific suffix 'BIMX' against the manufacturer's latest datasheet to confirm pinout compatibility and temperature grade. Ensure the open-drain output requirement matches the system design, as pull-up resistors are necessary for proper logic level translation. Confirm RoHS compliance status if required by local regulations.

Selection Notes

Select this component when a single comparator with rail-to-rail inputs is required in a small SOIC package. Consider the LMC7211 variant if a push-pull output is preferred over an open-drain configuration. Evaluate the 400 ns response time against system speed requirements before finalizing the design.

Part Context

This part belongs to the LMC72xx series of tiny CMOS comparators from Texas Instruments. The series includes variants with different output types, such as the LMC7211 which features a push-pull output instead of the open-drain output found in the LMC7221. All members share similar low-power and high-voltage operational characteristics.

Replacement Considerations

LMC7221AIMX/NOPB: Pin-compatible alternative with potentially different industrial temperature rating or manufacturing lot specifications.