LMC7225IM

Overview

The LMC7225IM is a single-channel analog comparator from Texas Instruments, housed in an 8-pin SOIC package. It features ultra-low input bias current of 50 fA and low input offset voltage of 6 mV. The device operates on a supply voltage range of 2 V to 8 V with a typical operating supply current of 1 uA. It provides an open-drain output and has a response time of 24 us. The component functions within a temperature range of -40°C to +85°C.

Feature Summary

• Ultra-low input bias current for minimal signal loading
• Low input offset voltage ensuring high precision
• Open-drain output configuration for flexible interfacing
• Single-channel design in a compact surface-mount package

Applications

• Battery-powered instrumentation systems
• Precision sensing applications requiring low leakage
• Threshold detection circuits
• Portable medical devices

Procurement Notes

Verify the specific suffix (e.g., NOPB) against the datasheet to confirm lead-free status and exact package variant. Ensure the ordering part number matches the required tape-and-reel or tube quantity if applicable. Cross-reference the manufacturer's latest documentation for any pinout or electrical specification updates prior to final procurement.

Selection Notes

Select this component when ultra-low input bias current is critical to maintain signal integrity in high-impedance sensor interfaces. The low power consumption makes it suitable for battery-operated devices. Compare performance metrics such as offset voltage and response time against other comparators in the same family to ensure compatibility with system timing and accuracy requirements.

Part Context

This device belongs to the LMC7225 series of micro-power comparators. It shares functional similarities with other members of the family but differs in package options and specific suffix designations. The series is designed for applications demanding low power and high precision in a small form factor.

Replacement Considerations

Check for direct substitutes like the LMC7225IM5-NOPB which offers the same functionality in a smaller SOT-23-5 package. Verify pin compatibility and electrical specifications before substitution. Other comparable parts may require circuit adjustments due to differences in output stage or supply voltage ranges.