ADM706RARZ

Supervisors Overview

The ADM706RARZ is a microprocessor supervisory circuit designed for monitoring 3 V or 3.3 V power supplies in Analog Devices' ADM706 series. It features a precision voltage monitor with a typical threshold of 2.63 V and a quiescent current of 100 μA. The device provides a 200 ms reset pulse width and includes a debounced manual reset input alongside an independent watchdog timer with a 1.6-second timeout. The active-low reset output ensures reliable operation, guaranteeing RESET valid with VCC at 1 V. It is housed in an 8-pin SOIC package.

Supervisors Feature Summary

• Precision supply voltage monitoring with low quiescent current consumption
• Integrated independent watchdog timer with fixed timeout period
• Debounced manual reset input for controlled system recovery
• Guaranteed reset validity at low supply voltages

Supervisors Applications

• Microprocessor systems requiring critical power supervision
• Battery-operated portable instruments
• Controllers and intelligent instruments
• Computers needing reliable voltage monitoring

Supervisors Procurement Notes

Verify the specific suffix 'R' indicates the active-low output configuration and 'ARZ' denotes the RoHS-compliant SOIC-8 package. Confirm that the 1.6-second watchdog timeout aligns with system requirements. Ensure compatibility with 3 V or 3.3 V supply rails as specified in the datasheet. Cross-reference the manufacturer part number to avoid confusion with similar variants like ADM706SARZ or ADM706TARZ which have different thresholds.

Supervisors Selection Notes

Select this component when a precise 2.63 V threshold is required for 3 V or 3.3 V systems. The active-low output suits logic families expecting low-active signals. Consider the 100 μA quiescent current for battery life optimization. The integrated watchdog and manual reset simplify design compared to discrete solutions. Verify thermal dissipation limits if operating near maximum temperature ranges.

Supervisors Part Context

The ADM706RARZ belongs to the ADM706 family of microprocessor supervisory circuits from Analog Devices. This series serves as a superior upgrade for legacy MAX706 parts. The 'R' variant specifically provides an active-low reset output, distinguishing it from the active-high ADM706P. The family supports industrial temperature ranges and offers robust protection for critical digital systems against power anomalies.

Supervisors Replacement Considerations

Public confirmed substitute part numbers include MAX706RCSA+.