ADM709RANZ

Supervisors Overview

The ADM709RANZ is a power supply monitor integrated circuit manufactured by Analog Devices Inc. It generates a system reset signal during power-up, power-down, and brownout conditions. The device features a fixed reset threshold voltage of 4.75V with a minimum reset timeout of 140ms. It operates within a supply voltage range of 1V to 5.5V and supports an operating temperature range of -40°C to +85°C. The component is housed in an 8-pin SOIC package.

Supervisors Feature Summary

• Generates system reset signals during power-up, power-down, and brownout events
• Fixed reset threshold voltage for reliable monitoring
• Push-pull output driver configuration
• Low active reset signal output

Supervisors Applications

• Digital signal processor (DSP) controller systems
• Microcontroller-based embedded designs
• Portable battery-powered equipment
• Industrial control systems requiring power supervision

Supervisors Procurement Notes

Verify the specific suffix 'R' indicates the SOIC package variant when sourcing. Confirm the manufacturer's End-of-Life status as public records indicate this series may be obsolete or limited availability. Ensure compatibility with existing board layouts using the 8-SOIC footprint before procurement.

Supervisors Selection Notes

Select this component when a fixed 4.75V reset threshold is required for single-supply monitoring. The ADM709RANZ is suitable for applications needing simple power-on reset functionality without programmable thresholds. Consider thermal performance and package constraints if higher pin counts are needed for additional features.

Supervisors Part Context

The ADM709 belongs to Analog Devices' family of power supply monitors designed for basic system protection. It serves as a fundamental component for ensuring stable operation by detecting voltage anomalies. The RANZ designation specifies the industrial temperature grade and surface-mount packaging format.

Supervisors Replacement Considerations

Publicly confirmed substitute part numbers include MAX709MCSA+ and MAX709MESA+. Verify pin compatibility and reset threshold specifications when transitioning between these alternatives.