ADCMP393ARUZ

Overview

The ADCMP393ARUZ is a quad comparator featuring rail-to-rail input and open-drain output. It operates on a single supply voltage from 2.3 V to 5.5 V with a quiescent current of 26.8 µA typical. The device guarantees a logic low output state when the supply voltage is below 0.9 V, ensuring defined power-up behavior. It includes an undervoltage lockout (UVLO) monitor and supports an operating temperature range from −40°C to +125°C.

Feature Summary

• Rail-to-rail common-mode input voltage range extending 200 mV beyond the supply rails
• Defined logic low output state guaranteed during power-up and below UVLO threshold
• Low quiescent current consumption suitable for battery-powered applications
• Open-drain output stage requiring external pull-up resistors

Applications

• Battery management and monitoring systems
• Power supply detection circuits
• Window comparators for voltage level monitoring
• Threshold detectors and discriminators
• Microprocessor system reset and sequencing control

Procurement Notes

Verify package type availability as the component is offered in both 14-lead SOIC and TSSOP configurations. Confirm that the specific ordering suffix matches the required physical footprint for the target PCB design. Ensure environmental compliance requirements align with the manufacturer's specifications for the selected variant.

Selection Notes

Select this component for general-purpose comparison tasks requiring wide common-mode input ranges and low power operation. The open-drain outputs allow flexible interfacing with various digital logic families by adjusting the external pull-up resistor value. Consider the propagation delay characteristics relative to the input overdrive voltage when designing high-speed signal processing paths.

Part Context

This part belongs to the Analog Devices comparator family designed for low-voltage, low-power applications. It integrates four independent comparators into a single compact package, reducing board space compared to discrete solutions. The architecture supports extended industrial temperature ranges, making it suitable for demanding electronic environments.

Replacement Considerations

Check datasheets for alternative quad comparators offering similar rail-to-rail inputs and open-drain outputs. Verify pin compatibility if substituting within the same package style. Ensure replacement parts meet the required supply voltage range and temperature specifications.