LMC6772AIM

Overview

The LMC6772AIM is a dual micropower CMOS comparator manufactured by Texas Instruments. It operates within a supply voltage range of 2.7 V to 15 V and consumes a maximum operating supply current of 20 µA. The device features an open-drain output type and is housed in an 8-SOIC package. Key electrical specifications include a maximum input offset voltage of 8 mV, a maximum input bias current of 400 fA, and a typical common-mode rejection ratio of 75 dB. It supports a wide operating temperature range from -40 °C to +85 °C.

Feature Summary

• Dual-channel micropower CMOS architecture designed for low energy consumption applications
• Open-drain output configuration allowing flexible interfacing with various logic families
• High input impedance characteristics suitable for sensitive signal detection

Applications

• Battery-powered portable equipment requiring minimal quiescent current
• Threshold detection circuits in low-voltage systems
• General-purpose analog signal comparison tasks

Procurement Notes

Verify the specific suffix (e.g., NOPB) against the datasheet to confirm lead-free status and environmental compliance. Ensure the package variant matches the required footprint, as tape-and-reel options may differ from tube packaging. Confirm that the operating temperature range aligns with the target application environment before finalizing procurement decisions.

Selection Notes

Select this component when low power consumption is critical alongside moderate speed requirements. The open-drain output necessitates an external pull-up resistor; ensure the selected resistor value meets the desired rise time and logic level requirements. Verify that the input voltage range remains within the specified limits relative to the supply rails to prevent latch-up or damage.

Part Context

This part belongs to the LMC6772 series of dual comparators. It shares functional similarities with other low-power CMOS comparators but is distinguished by its specific pinout and electrical characteristics defined by Texas Instruments. The series is designed to replace older bipolar comparators in applications where power efficiency is a primary design constraint.

Replacement Considerations

Check for direct pin-compatible alternatives within the same manufacturer's portfolio that offer updated environmental compliance or improved performance metrics. Ensure any substitute maintains the same open-drain output structure and supply voltage compatibility to avoid circuit redesign.