LTC1542CS8#TRPBF

Overview

The LTC1542CS8#TRPBF is a micropower analog comparator and operational amplifier integrated circuit manufactured by Analog Devices Inc. It operates on a single supply voltage ranging from 2.5V to 12.6V, or dual supplies of ±1.25V to ±6.3V, with a typical quiescent current of 5µA. The device features a unity-gain stable op amp with a gain-bandwidth product of 12kHz and rail-to-rail output swing. The comparator includes internal hysteresis of ±2.25mV for clean switching. It is housed in an 8-lead SOIC package.

Feature Summary

• Combines a micropower op amp and comparator in a single 8-pin package
• Features internal comparator hysteresis for noise immunity
• Op amp output swings rail-to-rail while driving capacitive loads up to 1000pF
• Input common mode range extends from the negative supply rail

Applications

• Battery-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 that the specific ordering suffix #TRPBF corresponds to the tape and reel packaging format required for automated assembly processes. Confirm that the commercial grade temperature rating aligns with the intended operating environment specifications before finalizing procurement orders.

Selection Notes

Select this component when space is limited within an 8-pin footprint and low power consumption is critical. Choose the LTC1542 over the LTC1541 if an external reference input is preferred over the internally connected bandgap reference. Ensure the application does not require high-speed signal processing given the 12kHz bandwidth limitation.

Part Context

This part belongs to the LTC1541/LTC1542 family of micropower mixed-signal ICs. It serves as a pin-compatible upgrade for legacy parts such as the MAX951 and MAX953. The series is designed for applications requiring both amplification and threshold detection capabilities within a compact form factor.

Replacement Considerations

The LTC1541CS8#TRPBF is a functional substitute within the same family, differing only by the inclusion of an internal reference.