ADM8691ARU

Supervisors Overview

The ADM8691ARU is a microprocessor supervisory circuit manufactured by Analog Devices Inc. It operates within a supply voltage range of 4.75 V to 5.5 V and monitors a single voltage threshold set at 4.65 V. The device features a programmable clock output and provides power-fail detection capabilities. It utilizes a 16-pin TSSOP surface-mount package and supports push-pull output drivers with active-high logic. The component is designed for battery backup applications and ensures system reliability through precise voltage monitoring.

Supervisors Feature Summary

• Integrates voltage monitoring with a fixed 4.65 V reset threshold for precise supervision
• Includes a programmable clock output feature for timing synchronization
• Provides power-fail detection signals to alert systems of voltage anomalies
• Supports battery backup circuit configurations for continuous operation

Supervisors Applications

• Microprocessor reset control circuits
• Battery backup power management systems
• Voltage monitoring in embedded systems
• Brownout detection in portable electronics

Supervisors Procurement Notes

Verify the specific suffix and package variant against the official Analog Devices datasheet to ensure compatibility with your design requirements. Confirm that the 16-pin TSSOP footprint matches your PCB layout. Check for any lead-free or RoHS compliance documentation if required by your manufacturing standards. Ensure the operating temperature range meets your environmental specifications before finalizing procurement.

Supervisors Selection Notes

Select this component when a fixed 4.65 V threshold is appropriate for the target voltage rail. The integrated programmable clock simplifies designs requiring synchronized timing signals without external oscillators. Consider the 16-pin TSSOP package size for space-constrained applications. Verify that the push-pull output drive capability meets the input requirements of the downstream logic or microprocessor.

Supervisors Part Context

The ADM8691ARU belongs to the ADM8690/ADM8691 family of microprocessor supervisory circuits from Analog Devices. These devices are designed to provide reliable reset and monitoring functions for digital systems. The ARU variant specifically denotes the 16-lead TSSOP package option, distinguishing it from other package styles available within the same functional family.

Supervisors Replacement Considerations

Check the official Analog Devices cross-reference list for direct pin-compatible substitutes. Verify that alternative parts maintain the 4.65 V threshold and 16-pin TSSOP form factor. Ensure equivalent electrical characteristics such as supply voltage range and output driver type are met.