LMC6762AIMX

Overview

The LMC6762AIMX is a dual micro-power rail-to-rail input CMOS comparator manufactured by Texas Instruments. It features push-pull outputs and operates within a supply voltage range of 2.7 V to 15 V, or ±1.35 V to ±7.5 V in dual-supply configurations. The device draws a typical operating supply current of 20 µA per channel. Key electrical specifications include a maximum response time of 4 µs, an input offset voltage of up to 8 mV, and an input bias current of 0.04 pA. It provides a common-mode rejection ratio of 75 dB and a power supply rejection ratio of 80 dB. The component is housed in an 8-SOIC package and supports an operating temperature range from -40°C to +85°C.

Feature Summary

• Dual micro-power architecture with rail-to-rail input capability for wide signal compatibility
• Push-pull output stage providing robust drive capability without external pull-up resistors
• CMOS construction ensuring low static power consumption suitable for battery-operated systems

Applications

• Battery-powered portable instrumentation
• Threshold detection circuits in low-power embedded systems
• Signal conditioning for microprocessor interfaces

Procurement Notes

Verify the specific suffix (e.g., NOPB) against the datasheet to confirm lead-free status and RoHS compliance. Ensure the SOIC-8 package dimensions match the target PCB footprint. Confirm that the 4 µs response time meets the system's timing requirements for the intended application frequency.

Selection Notes

Select this component when dual comparators are required with minimal quiescent current. The rail-to-rail input allows sensing signals near the supply rails, which is advantageous in single-supply designs. Compare the 8 mV offset voltage against other precision comparers if high accuracy is critical. Consider the LMC6772 variant if open-drain outputs are preferred instead of push-pull.

Part Context

This part belongs to the LMC6762 family of analog comparators from Texas Instruments. It is functionally similar to the LMC6762BIM but may differ in specific parameter tolerances or manufacturing lot characteristics. The device is part of a broader portfolio of low-power CMOS analog components designed for energy-efficient applications.

Replacement Considerations

The LMC6762BIM is listed as obsolete with the LMC6762BIMX/NOPB identified as a direct replacement. Other potential substitutes include the MCP6562 from Microchip Technology or the TS3022IDT from STMicroelectronics, though pinout and electrical specifications must be verified for compatibility.