ADM691AQ

Supervisors Overview

The ADM691AQ is a microprocessor supervisory circuit from Analog Devices, housed in a 16-pin CERDIP package. It monitors a single voltage input with a threshold of 4.65 V and an overvoltage threshold of 4.75 V. The device features an open-drain or push-pull output, a watchdog timer, and a battery backup switch. It operates within a supply voltage range up to 5.5 V, consumes 100 uA, and has a reset delay of 280 ms. The operating temperature range spans from -55 C to +125 C.

Supervisors Feature Summary

• Integrated watchdog timer for system reliability
• Battery backup switching capability
• Configurable output drive types

Supervisors Applications

• Microprocessor power supply monitoring
• Battery control systems
• Industrial control units

Supervisors Procurement Notes

Verify the specific suffix 'AQ' against the manufacturer's current datasheet to confirm pinout compatibility and electrical specifications. Ensure the ceramic dual in-line package matches the target PCB footprint. Confirm availability status as distribution channels may vary for this component.

Supervisors Selection Notes

Select this part for applications requiring wide industrial temperature operation and robust power supervision. Compare the 16-pin CERDIP package constraints against available board space. Evaluate the need for manual reset inputs if not provided by this specific variant.

Supervisors Part Context

This component belongs to the ADM691 family of supervisory circuits designed for complete single-chip solutions in power supply monitoring. It serves as a critical protection element in embedded systems, ensuring stable operation under varying power conditions.

Supervisors Replacement Considerations

Check for ADM691AANZ or MAX691AMJE as potential functional equivalents. Verify package differences between PDIP, CDIP, and CERDIP formats before substitution.