LMC6772AIN

Overview

The LMC6772AIN is a dual micro-power CMOS comparator manufactured by Texas Instruments. It features an open-drain output configuration and operates within a supply voltage range of 2.7V to 15V (single) or ±1.35V to ±7.5V (dual). The device draws a maximum power supply current of 10μA, ensuring ultra-low power consumption. Key electrical specifications include a maximum propagation delay of 10μs and a maximum input offset voltage of 5mV at 5V. It is housed in an 8-pin PDIP package with a width of 0.300 inches (7.62mm) and supports through-hole mounting.

Feature Summary

• Ultra-low power consumption with a maximum supply current of 10μA
• Dual channel architecture providing two independent comparators in one package
• Open-drain output stage suitable for wired-OR configurations
• Rail-to-rail input capability allowing operation across the full supply range

Applications

• Battery-powered portable devices requiring minimal quiescent current
• Threshold detection circuits in low-voltage systems
• General-purpose signal conditioning where power efficiency is critical
• Temperature sensing interfaces using thermistors or RTDs

Procurement Notes

Verify the specific suffix 'AIN' confirms the 8-DIP through-hole package and industrial temperature range (-40°C to 85°C). Ensure the open-drain output requirement matches the system design, as this variant lacks push-pull drivers. Confirm RoHS compliance status if required by manufacturing standards. Cross-reference the manufacturer part number against official Texas Instruments documentation to avoid counterfeit components.

Selection Notes

Select the LMC6772AIN when low static current is prioritized over high-speed response. The 10μs propagation delay is suitable for non-critical timing applications. Compare against the LMC6762 series if push-pull outputs are necessary instead of open-drain. Consider the PDIP package constraints for PCB layout if surface-mount alternatives like SOIC are preferred for automated assembly.

Part Context

This component belongs to the LMC67xx family of micro-power comparators from Texas Instruments. It shares architectural similarities with other members like the LMC6762 but differs in output stage type. The family is designed for battery-operated applications where minimizing power drain is essential. The AIN suffix specifically denotes the plastic dual in-line package variant within this product line.

Replacement Considerations

LMC6762AIMX/NOPB: Offers push-pull output instead of open-drain; requires level shifting adjustments if used as a direct replacement.

FAQ

What is the maximum input offset voltage for the LMC6772AIN?

The maximum input offset voltage is 5mV when measured at a 5V supply.

Does the LMC6772AIN support single-supply operation?

Yes, it operates on a single supply voltage ranging from 2.7V to 15V.