ADCMP394ARZ-RL7

Overview

The ADCMP394ARZ-RL7 is a single-channel rail-to-rail input comparator from Analog Devices, housed in an 8-lead narrow body SOIC package. It operates on a single supply voltage ranging from 2.3 V to 5.5 V and draws a typical quiescent current of 33.9 µA. The device features a high-accuracy buffered reference output of 1 V ± 0.9% and guarantees a defined logic low output state when the supply voltage drops below the undervoltage lockout threshold of 0.9 V. Propagation delay is typically 4.7 µs at 2.3 V with 10 mV overdrive.

Feature Summary

• Rail-to-rail common-mode input voltage range extending 200 mV beyond the supply rails
• Integrated buffered reference output providing a precise 1 V trip value for monitoring
• Guaranteed logic low output assertion during power-up or undervoltage conditions

Applications

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

Procurement Notes

Verify the specific ordering suffix RL7 corresponds to the reel packaging configuration required for your assembly line. Confirm that the 8-lead SOIC footprint matches your PCB layout constraints. Ensure the component meets RoHS compliance standards applicable to your manufacturing region before finalizing procurement orders.

Selection Notes

Select this component for applications requiring low power consumption and high accuracy without external reference components. The open-drain output necessitates an external pull-up resistor; ensure the selected resistor value supports the required rise time and logic levels. Consider the extended temperature range if operating in harsh environments.

Part Context

This part belongs to the ADCMP39x family of single/dual/quad comparators. While the ADCMP395 offers a dual-channel configuration in MSOP and the ADCMP396 provides four channels in SOIC-16, the ADCMP394 specifically addresses single-channel needs in a compact 8-pin package. All variants share identical electrical characteristics and pinouts where applicable.

Replacement Considerations

Direct functional replacements within the same family include ADCMP395ARZ for dual-channel requirements and ADCMP396ARZ for quad-channel implementations. Verify package compatibility when substituting between different channel counts.