ADM709RARZ

Supervisors Overview

The ADM709RARZ is a supervisory circuit manufactured by Analog Devices Inc., designed to monitor a single voltage input. It features an active-low, push-pull reset output with a fixed threshold of 4.4V and a minimum reset timeout of 140ms. The device operates within a supply voltage range up to 5.5V and supports surface-mount installation in an 8-SOIC package. It functions without manual reset or watchdog capabilities, maintaining operation across a temperature range of -40°C to +85°C.

Supervisors Feature Summary

• Provides power-supply monitoring with a fixed threshold for system reset generation
• Delivers an active-low, push-pull reset signal upon detecting undervoltage conditions
• Ensures stable initialization through a defined reset timeout period

Supervisors Applications

• Embedded systems requiring reliable power-on reset sequences
• Microcontroller-based designs needing voltage supervision
• Industrial control units operating in extended temperature environments

Supervisors Procurement Notes

Verify component authenticity and datasheet alignment before integration. Confirm the specific suffix corresponds to the required package and temperature grade. Check current lifecycle status as end-of-life notifications may impact long-term availability. Ensure compatibility with existing board layouts and thermal management requirements.

Supervisors Selection Notes

Select this component when a fixed 4.4V threshold is appropriate for the target rail. Consider the 8-SOIC package constraints for PCB space. Evaluate if the 140ms timeout meets system startup timing needs. Compare against alternatives if manual reset inputs or lower thresholds are required.

Supervisors Part Context

Part of the ADM709 series from Analog Devices, focusing on simple voltage supervision. This model specifically targets applications needing a standard 4.4V trip point. It complements other variants offering different thresholds or manual reset features within the same family.

Supervisors Replacement Considerations

MAX709MCSA+ is a documented similar alternative. Verify pinout compatibility and threshold voltage differences before substitution.