LTC1444CN#PBF

Overview

The LTC1444CN#PBF is an ultralow power quad comparator with a built-in reference, manufactured by Analog Devices Inc. It operates from a single 2V to 11V supply or dual ±1V to ±5.5V supply. The device features less than 8.5µA supply current over temperature and includes a 1.221V ±1% internal reference. It offers programmable hysteresis via the HYST pin and provides open-drain outputs for each of its four comparators.

Feature Summary

• Ultralow quiescent current consumption
• Built-in voltage reference output
• Programmable hysteresis capability
• Open-drain CMOS compatible outputs

Applications

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

Procurement Notes

Verify the specific package type matches the required PCB footprint before ordering. Confirm that the commercial temperature range meets the operational requirements of the target environment. Ensure the open-drain output configuration aligns with the pull-up resistor strategy in the circuit design.

Selection Notes

Select this component when low power consumption is critical and multiple comparison functions are needed in a single package. The integrated reference simplifies design by removing external components. Verify that the open-drain output requirement fits the logic interface needs compared to sourcing output alternatives.

Part Context

This part belongs to the LTC1443/LTC1444/LTC1445 family of micropower comparators. It shares similar electrical characteristics with other members but differs in output stage configuration and hysteresis control. The CN suffix indicates a commercial temperature grade and PDIP-16 packaging.

Replacement Considerations

LTC1443IN#PBF and LTC1445IN#PBF are pin-compatible upgrades within the same family.