ADM709RARZ-REEL

Supervisors Overview

The ADM709RARZ-REEL is a power supply monitor and reset generator integrated circuit manufactured by Analog Devices Inc. It features a fixed reset threshold voltage of 2.63V, designed to monitor single-channel input voltages within the 1V to 5.5V operating range. The device provides an active-low, push-pull reset output with a typical reset timeout delay of 280ms. It operates within an industrial temperature range of -40°C to +85°C and is available in an 8-SOIC surface-mount package.

Supervisors Feature Summary

• Provides automatic system reset upon detection of under-voltage conditions relative to a fixed threshold
• Features an active-low, push-pull output driver for direct interface with microprocessor reset pins
• Includes internal glitch filtering to prevent false triggering from transient noise on the power rail

Supervisors Applications

• Microprocessor and microcontroller power supply supervision
• Battery-powered systems requiring low quiescent current monitoring
• Industrial control units needing reliable reset generation during power transitions

Supervisors Procurement Notes

Verify the specific suffix REEL indicates tape-and-reel packaging configuration when sourcing. Confirm the RARZ designation corresponds to the 2.63V threshold variant. Check for End-of-Life (EOL) status or limited availability notices from Analog Devices prior to finalizing procurement plans.

Supervisors Selection Notes

Select this component when a fixed 2.63V reset threshold is required for 3.3V or 5V logic systems. Ensure the application does not require manual reset inputs or watchdog timer functionality, as these are absent in this specific variant. Verify that the SOIC-8 package dimensions fit the target PCB layout constraints.

Supervisors Part Context

This part belongs to the ADM709 family of simple reset supervisors. It shares the core architecture with variants offering different thresholds or additional features like manual reset inputs. The RARZ suffix specifically denotes the 2.63V threshold version in the standard commercial/industrial grade lineup.

Supervisors Replacement Considerations

MAX709RESA+ is a documented similar substitute offering comparable reset supervisor functionality.