LMC6772BIM

Overview

The LMC6772BIM is a dual low-power analog comparator manufactured by Texas Instruments. It operates within a supply voltage range of 2.7 V to 15 V and draws an operating supply current of 20 uA. The device features rail-to-rail input capability and open-drain outputs. Key electrical parameters include an input offset voltage (Vos) of 18 mV, input bias current (Ib) of 0.04 pA, and input offset current (Ios) of 20 fA. Common-mode rejection ratio (CMRR) is specified at 75 dB, while power-supply rejection ratio (PSRR) is 80 dB. It functions reliably across a temperature range from -40°C to +85°C.

Feature Summary

• Dual-channel architecture with rail-to-rail input capability for wide common-mode voltage range
• Low-power operation with 20 uA supply current suitable for battery-powered applications
• Open-drain output configuration allowing flexible logic level interfacing

Applications

• General-purpose signal comparison in low-power systems
• Threshold detection circuits requiring high input impedance
• Battery-operated devices where minimal quiescent current is critical

Procurement Notes

Verify the exact suffix against official Texas Instruments documentation, as 'LMC6772BIM' may require specific trailing characters such as '/NOPB' or 'X' for tape-and-reel packaging. Confirm RoHS compliance status and ensure the selected variant matches the required package type, typically SOIC-8, for your design implementation.

Selection Notes

Select this component when designing circuits that demand ultra-low input bias current and low power consumption. The rail-to-rail inputs accommodate signals near the supply rails, while the open-drain outputs simplify interface connections. Ensure the application does not require shutdown functionality, as this variant lacks that feature.

Part Context

This part belongs to the LMC6772 series of dual comparators from Texas Instruments. It is designed for general-purpose applications requiring low power and high input impedance. The series offers variants with different suffixes indicating package types and environmental compliance, all sharing the same core electrical characteristics.

Replacement Considerations

Consult Texas Instruments datasheets for direct pin-compatible alternatives within the LMC6772 family. Verify if other variants offer additional features like shutdown modes or different temperature ranges if those are required for the specific application.