ADM691AARWZ

Supervisors Overview

The ADM691AARWZ is a voltage supervisory circuit manufactured by Analog Devices Inc., designed for 5V CMOS process applications. It operates within a supply voltage range of 4.75 V to 5.5 V and features a threshold voltage of 4.65 V with an overvoltage threshold of 4.75 V. The device provides power-fail detection, a watchdog timer, and battery backup switching capabilities. It utilizes an open-drain output type and includes a chip enable signal, while lacking manual reset functionality. The reset delay time is specified at 200 ms, and the typical operating supply current is 100 uA. Power dissipation is rated at 762 mW. The component is housed in a SOIC-16 package and supports surface mount installation. It functions across a temperature range from -40 C to +85 C.

Supervisors Feature Summary

• Integrates watchdog timer and battery backup switching for system reliability
• Provides power-fail detection with open-drain output signaling
• Includes chip enable control for low-power management

Supervisors Applications

• Monitoring 5V power supplies in industrial systems
• Embedded controller supervision in consumer electronics
• Automotive subsystem power monitoring

Supervisors Procurement Notes

Verify availability status as this part may be subject to limited supply or end-of-life restrictions. Confirm RoHS compliance details through official documentation before procurement. Ensure the SOIC-16 package variant matches design requirements. Check for obsolescence notices from Analog Devices to mitigate supply chain risks during production planning.

Supervisors Selection Notes

Select this component when a single-input voltage supervisor with integrated watchdog and backup switching is required. The 100 uA operating current suits low-power designs. Verify that the 4.65 V threshold aligns with the target 5V rail tolerance. Consider the SOIC-16 package constraints for PCB layout. Ensure the absence of manual reset meets the system reset logic requirements.

Supervisors Part Context

This part belongs to the ADM691A series of voltage supervisors from Analog Devices. It shares functional similarities with other variants like ADM691AARNZ but differs in packaging (SOIC-16 vs. potentially others) and specific electrical parameters such as power dissipation ratings. The series is designed for robust power management in CMOS environments.

Supervisors Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source data. Cross-reference with ADM691AARNZ only if package and parameter differences are acceptable per design specifications.