LTC1442CS8#TRPBF

Overview

The LTC1442CS8#TRPBF is a dual-channel ultralow power comparator with an integrated 1.182V reference, housed in an 8-lead SOIC package. It operates on a single supply from 2V to 11V or dual supplies of ±1V to ±5.5V. The device features programmable hysteresis via the HYST pin and CMOS outputs capable of sourcing up to 40mA. Supply current is typically 3.5µA at 5V. Propagation delay is 15µs with 10mV overdrive. Input common mode range extends from V– to V+ – 1.3V.

Feature Summary

• Dual comparators with built-in 1.182V reference
• Programmable hysteresis capability
• CMOS outputs with high source current drive
• Glitch-free switching operation

Applications

• Battery-powered system monitoring
• Threshold detectors
• Window comparators
• Oscillator circuits

Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging for automated assembly. Confirm the 'C' grade designation aligns with the required commercial operating temperature range of 0°C to 70°C. Ensure the 8-lead SOIC footprint matches the PCB layout constraints before finalizing procurement orders.

Selection Notes

Select this component when dual independent comparison channels are required within a single package. The integrated reference eliminates external voltage divider components. Choose this part over the LTC1440 if split supply operation is not needed, as the LTC1442 shares the same negative supply rail for both inputs and outputs.

Part Context

This device belongs to the LTC1440/LTC1441/LTC1442 family of micropower comparators. While the LTC1440 offers single-channel operation with a separate ground pin, and the LTC1441 provides dual channels without hysteresis control, the LTC1442 combines dual channels with adjustable hysteresis functionality.

Replacement Considerations

Public confirmed substitute part numbers: None identified in provided documentation.