ADM823SYRJZ-R7

Supervisors Overview

The ADM823SYRJZ-R7 is a supervisory circuit manufactured by Analog Devices Inc., designed to monitor power supply voltage levels and ensure code execution integrity. It features an active low watchdog timer with manual reset capability, housed in a compact SOT-23-5 surface-mount package. The device operates within a supply voltage range of up to 5.5 V and supports a threshold voltage of 3.08 V. It includes a reset delay time of 280 ms and maintains high accuracy of 2.5%. The component functions across an extended industrial temperature range from -40°C to +125°C, drawing a typical operating supply current of 24 µA.

Supervisors Feature Summary

• Monitors power supply voltage levels and code execution integrity
• Integrates active low watchdog timer with manual reset functionality
• Provides push-pull output type for reliable signal interfacing

Supervisors Applications

• Embedded system power supervision
• Microcontroller reset management
• Industrial control unit monitoring

Supervisors Procurement Notes

Verify the specific suffix RJZ corresponds to the SOT-23-5 package configuration when sourcing. Confirm the 3.08 V threshold requirement aligns with target system voltages. Ensure compatibility with the 280 ms reset delay timing constraints. Validate that the 24 µA quiescent current meets low-power design specifications. Check for RoHS compliance documentation prior to final procurement approval.

Supervisors Selection Notes

Select this component when precise voltage monitoring and code execution integrity are required in space-constrained designs. The SOT-23-5 package offers a small footprint suitable for portable or dense PCB layouts. Consider the 2.5% accuracy and 280 ms reset delay for applications requiring stable startup sequences. Evaluate the 24 µA supply current against battery life requirements. Ensure the active low output logic matches the downstream controller input expectations.

Supervisors Part Context

This part belongs to the ADM823/ADM824/ADM825 family of supervisory circuits from Analog Devices. These devices are engineered for precision monitoring in systems where power stability and software reliability are critical. The series provides multiple threshold options and packaging variants to accommodate diverse design needs while maintaining consistent performance characteristics across the product line.

Supervisors Replacement Considerations

Public confirmed substitute part numbers: ADM823TYKSZ-R7.