LTC1542IMS8#TRPBF

Overview

The LTC1542IMS8#TRPBF is a micropower operational amplifier and comparator housed in an 8-lead MSOP package. It operates from a single supply of 2.5V to 12.6V or dual supplies of ±1.25V to ±6.3V, drawing a typical supply current of 5µA. The op amp features rail-to-rail output swing, 12kHz gain-bandwidth product, and 8V/ms slew rate. The comparator includes internal hysteresis of ±2.25mV for clean switching.

Feature Summary

• Combines a micropower op amp and comparator with rail-to-rail input and output capabilities
• Features internal comparator hysteresis to ensure stable switching with slow-moving signals
• Operates on low supply currents suitable for battery-powered applications

Applications

• Battery or solar-powered systems
• Automotive keyless entry
• Low frequency local area alarms and detectors
• Infrared receivers for remote controls
• Smoke detectors and safety sensors

Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging and lead-free compliance. Confirm the IMS8 designation corresponds to the industrial temperature grade (-40°C to +85°C) and MSOP package type. Ensure the source documentation explicitly supports these attributes for this exact part number before procurement.

Selection Notes

Select the LTC1542 when a combined amplification and comparison function is required in a space-constrained design. This component is appropriate for applications needing low quiescent current and rail-to-rail signal handling. Consider the LTC1541 if an integrated bandgap reference is needed instead of a separate comparator input pin.

Part Context

This device belongs to the LTC1541/LTC1542 family of micropower mixed-signal ICs. It serves as a functional alternative to legacy parts like the MAX951/MAX953. The series is designed for low-frequency precision applications requiring minimal power consumption while maintaining high input impedance and stability.

Replacement Considerations

Public confirmed substitute part numbers: None.