ADM823RYRJZ-R7

Supervisors Overview

The ADM823RYRJZ-R7 is a supervisory circuit manufactured by Analog Devices Inc., designed for voltage monitoring and system reset control. It integrates a watchdog timer with manual reset functionality in a compact SOT-23-5 surface-mount package. The device operates within a supply voltage range of up to 5.5 V, featuring a threshold voltage of 2.63 V and an overvoltage threshold of 2.7 V. Key electrical parameters include a reset delay time of 200 ms, accuracy of 2.5%, and a quiescent current of 10 uA. It supports active low push-pull output and functions reliably across an operating temperature range from -40°C to +125°C.

Supervisors Feature Summary

• Integrates a watchdog timer with manual reset capability for robust system supervision
• Provides active low push-pull output for direct interface with digital logic
• Features low quiescent current consumption suitable for power-sensitive applications

Supervisors Applications

• Microprocessor and microcontroller system reset generation
• Watchdog timer implementation for fault detection
• Voltage supervision in portable electronic devices

Supervisors Procurement Notes

Verify the specific suffix R7 indicates reel packaging when sourcing. Confirm the manufacturer is Analog Devices Inc. and not a third-party distributor claiming original status without documentation. Ensure the part matches the SOT-23-5 package and 2.63 V threshold specifications required for the design.

Supervisors Selection Notes

Select this component when a combined voltage supervisor and watchdog timer is required in a minimal footprint. The 2.63 V threshold suits 3.3 V systems. Consider the 10 uA current draw for battery life requirements. Verify that the active low output polarity aligns with the target controller's reset input logic.

Supervisors Part Context

This part belongs to the ADM823 series of supervisory circuits from Analog Devices. These components are engineered for reliable operation in industrial and consumer electronics where system stability is critical. The series offers various threshold voltages and packages to accommodate different design constraints while maintaining high accuracy and low power consumption.

Supervisors Replacement Considerations

Check Analog Devices datasheets for alternative parts within the ADM823 family offering similar thresholds or packages. Verify pin compatibility and electrical specifications before substituting with other manufacturers' watchdog supervisors.