ADM8694ARN-REEL

Supervisors Overview

The ADM8694ARN-REEL is a dual-channel voltage supervisor and reset integrated circuit manufactured by Analog Devices Inc. It operates within a supply voltage range of 2.7 V to 5.5 V, featuring fixed threshold voltages of 4.65 V for under-voltage detection and 4.73 V for over-voltage protection. The device provides active-low push-pull outputs with a standard reset delay time of 50 ms. Designed for industrial applications, it functions reliably across an extended temperature range from -40°C to +85°C. Packaged in an 8-lead SOIC, it supports battery backup switching and power-fail detection without requiring manual reset inputs.

Supervisors Feature Summary

• Dual-channel supervision for independent monitoring of multiple voltage rails
• Active-low push-pull output configuration for direct logic interface compatibility
• Integrated battery backup switching capability to ensure data retention during power transitions
• Fixed threshold detection eliminating the need for external resistor networks

Supervisors Applications

• Microprocessor system reset generation
• Battery backup circuit management
• Power-fail signal detection
• Over-voltage and under-voltage protection in embedded systems

Supervisors Procurement Notes

Verify the specific suffix 'REEL' indicates tape-and-reel packaging when sourcing components. Confirm that the part number corresponds to the Analog Devices manufacturing line rather than third-party distributors claiming equivalent functionality. Ensure the order specification matches the required operating temperature range and package dimensions for PCB layout compatibility.

Supervisors Selection Notes

Select this component when dual independent voltage monitoring is required within a single package. It is suitable for designs needing fixed threshold supervision without adjustable resistor networks. Consider the 50 ms reset delay for timing constraints. Verify that the active-low output polarity aligns with the target microcontroller or logic input requirements.

Supervisors Part Context

This component belongs to the ADM869x series of supervisory circuits from Analog Devices. It serves as an enhanced successor to earlier ADM690 family devices, offering improved accuracy and integrated features. The series focuses on providing reliable power management solutions for digital systems requiring robust voltage monitoring and reset generation capabilities.

Supervisors Replacement Considerations

Public confirmed substitute part numbers include ADM8690ARN-REEL and ADM8691ARN-REEL. These alternatives share similar pinouts and functional characteristics but may differ in channel count or specific threshold configurations. Verify electrical parameters before substitution.