LMC6772AIMMX

Overview

The LMC6772AIMMX is a dual low-power analog comparator manufactured by Texas Instruments, housed in an 8-SOIC surface-mount package. It operates on a single or dual supply voltage ranging from 2.7V to 15V (±1.35V to ±7.5V). The device features open-drain outputs capable of sinking up to 30mA. Key electrical specifications include a maximum input offset voltage of 5mV at 5V, a maximum input bias current of 400fA, and a typical quiescent current of 20µA per channel. Common-mode rejection ratio is typically 75dB, with power supply rejection ratio at 80dB. Propagation delay is specified at a maximum of 10µs. The component functions within a temperature range of -40°C to +85°C.

Feature Summary

• Dual-channel architecture providing two independent comparison functions in a compact package
• Ultra-low power consumption suitable for battery-operated applications
• Open-drain output configuration allowing flexible interfacing with various logic families
• High input impedance minimizing loading effects on signal sources

Applications

• Battery-powered monitoring systems requiring minimal standby current
• Threshold detection circuits in industrial control environments
• Voltage level shifting interfaces between different logic domains
• Simple over-voltage or under-voltage protection schemes

Procurement Notes

Verify the exact suffix against manufacturer documentation, as 'LMX' variants may indicate specific tape-and-reel packaging or regional distribution channels distinct from standard 'MX' designations. Confirm RoHS compliance status and moisture sensitivity level requirements for your assembly process. Ensure the 8-SOIC footprint matches your PCB layout constraints. Cross-reference the datasheet revision date to confirm parameter stability before finalizing procurement.

Selection Notes

Select this component when low static current is critical compared to general-purpose comparators. The open-drain output requires external pull-up resistors, which must be accounted for in rise time calculations. Consider the 10µs propagation delay if high-speed switching is required; faster alternatives exist for nanosecond applications. Verify that the 5mV offset voltage meets your precision requirements for differential signals.

Part Context

This part belongs to the LMC6772 family of low-power comparators from Texas Instruments. It serves as a cost-effective solution for applications where power conservation outweighs the need for high-speed response. The SOIC-8 package offers a balance between pin count and board space efficiency. It complements other linear ICs in the portfolio designed for general-purpose analog signal processing tasks.

Replacement Considerations

Direct substitutes include the LM393 series for general-purpose needs, though power consumption differs significantly. For lower offset voltage requirements, consider the LMV331 or LMH7322 families. Verify pin compatibility and output stage characteristics when swapping to ensure circuit functionality remains intact without redesigning pull-up networks.