LMC7221BIM5

Overview

The LMC7221BIM5 is a single-channel, low-power 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 and consumes a typical quiescent current of 14 µA. Key electrical specifications include a maximum input offset voltage of 15 mV and an input bias current of 0.4 pA. The component supports operation across a temperature range from -40°C to +85°C and is housed in a compact SOT-23-5 surface-mount package.

Feature Summary

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

Applications

• Battery-powered monitoring systems
• Threshold detection circuits
• Low-voltage signal conditioning

Procurement Notes

Verify the specific suffix 'BIM5' against the official Texas Instruments datasheet to confirm the package type (SOT-23-5) and temperature grade. Ensure the open-drain output requirement matches the target circuit design. Confirm RoHS compliance status via the manufacturer's documentation before procurement.

Selection Notes

Select this component when rail-to-rail input sensitivity is required alongside minimal power consumption. The open-drain output necessitates an external pull-up resistor; ensure the selection accounts for this interface requirement. Compare input offset voltage and bias current specifications against application tolerance levels to ensure adequate accuracy.

Part Context

This part belongs to the LMC7221 family of tiny CMOS comparators. It shares functional similarities with the LMC7211 but differs in output topology, utilizing an open-drain structure instead of push-pull. The series is designed for general-purpose comparison tasks where space and power efficiency are critical constraints.

Replacement Considerations

The LMC7221AIM5/NOPB is a documented equivalent within the same family offering identical functionality. Verify pin compatibility and output drive requirements when substituting.