ADM812ZART-REEL

Supervisors Overview

The ADM812ZART-REEL is a voltage supervisory circuit manufactured by Analog Devices Inc., designed for monitoring single power supply rails. It operates within a maximum supply voltage of 5.5 V and features a fixed reset threshold voltage of 4.63 V with an overvoltage threshold of 4.72 V. The device provides an active high output signal and includes a manual reset input, while lacking watchdog or battery backup functions. It utilizes a SOT-143-4 surface-mount package and maintains a reset delay time of 560 ms.

Supervisors Feature Summary

• Provides active high reset output for reliable logic interfacing
• Includes manual reset input for system control flexibility
• Features low quiescent current consumption for power efficiency

Supervisors Applications

• Microprocessor power supply monitoring
• Battery-powered equipment supervision
• Portable instrumentation reset generation

Supervisors Procurement Notes

Verify the specific suffix configuration against official datasheets to ensure correct threshold voltage and output polarity. Confirm availability status as distribution channels may list limited stock or obsolete variants. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components and ensure compliance with RoHS directives.

Supervisors Selection Notes

Select this component when an active high reset signal is required for downstream logic circuits. Ensure the monitored rail voltage does not exceed the 5.5 V absolute maximum rating. Consider the 560 ms reset delay duration relative to system startup requirements. Verify that the SOT-143-4 package footprint aligns with the PCB layout constraints.

Supervisors Part Context

This part belongs to the ADM81x series of supervisory circuits from Analog Devices. It shares the same package and basic functionality as other variants in the family but differs in threshold voltage settings and output polarity. The Z suffix typically indicates lead-free packaging compliant with specific environmental standards.

Supervisors Replacement Considerations

Direct substitutes include ADM812LARTZ-REEL7 and ADM812SARTZ-REEL7 from the same manufacturer. Verify that alternative parts match the active high output requirement and the 4.63 V threshold specification before integration.