ADM691AARUZ

Supervisors Overview

The ADM691AARUZ is a voltage supervisory circuit manufactured by Analog Devices Inc., designed for monitoring single power supply rails in CMOS process applications. It operates within a maximum supply voltage of 5.5 V and features a threshold voltage of 4.65 V with an overvoltage threshold of 4.75 V. The device provides a reset delay time of 280 ms and includes a watchdog timer function. It utilizes a TSSOP-16 package for surface mount installation and supports both open drain and push-pull output types. The component draws a working supply current of 100 uA and functions reliably across an operating temperature range from -40 C to +85 C.

Supervisors Feature Summary

• Integrates a watchdog timer for system reliability monitoring
• Supports battery backup switching functionality
• Includes chip enable signal control capability
• Features power failure detection mechanisms

Supervisors Applications

• Microprocessor system supervision
• Power management IC monitoring
• CMOS process integrated circuits

Supervisors Procurement Notes

Verify the specific package type and output configuration required for your design, as the ADM691A series offers variations such as SOIC or PDIP packages with different reset delays. Confirm availability status directly with authorized distributors, as this component may be subject to limited supply or end-of-life restrictions. Ensure that the selected variant matches the necessary thermal dissipation requirements and operating temperature range for your specific application environment before finalizing procurement.

Supervisors Selection Notes

Select the ADM691AARUZ when a TSSOP-16 surface mount package is required alongside push-pull output capabilities. Compare reset delay times against other family members like the ADM691AARNZ if faster response is needed. Verify that the 100 uA supply current meets low-power constraints. Ensure the 4.65 V threshold aligns with the monitored rail voltage specifications and that the 5.5 V maximum supply rating accommodates potential transients in the power system.

Supervisors Part Context

This component belongs to the ADM691A series of voltage supervisory circuits from Analog Devices. The series includes variants with different packages such as SOIC-16 (ADM691AARNZ) and PDIP-16 (ADM691AANZ), which may exhibit different reset delay times and power dissipation characteristics. The ADM691AARUZ specifically denotes the TSSOP-16 surface mount version with combined open drain and push-pull outputs, distinguishing it from other pin-compatible options in the same functional family.

Supervisors Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.