ADM812LARTZ-REEL

Supervisors Overview

The ADM812LARTZ-REEL is a voltage supervisory circuit manufactured by Analog Devices Inc., designed for monitoring single-channel power supplies. It operates within a supply voltage range of 1.2 V to 5.5 V and features a fixed reset threshold of 4.63 V with an accuracy of 1.5%. The device provides an active high output signal and includes a manual reset input capability. Key timing parameters include a reset delay time of 560 ms and a maximum power dissipation of 200 mW. It functions without a watchdog timer or battery backup switch, utilizing a SOT-143-4 package suitable for surface mount applications across an industrial temperature range of -40°C to +85°C.

Supervisors Feature Summary

• Provides precise voltage supervision with a fixed 4.63 V threshold and 1.5% accuracy
• Features an active high output signal compatible with standard logic interfaces
• Includes a manual reset input for controlled system recovery operations

Supervisors Applications

• Microprocessor power supply monitoring in embedded systems
• Voltage supervision for portable electronic devices
• Industrial control system power integrity verification

Supervisors Procurement Notes

Verify the specific suffix configuration against official Analog Devices documentation to ensure correct packaging and electrical characteristics. Confirm that the component meets all required environmental standards for the intended application environment. Cross-reference the manufacturer part number with authorized distributor catalogs to validate authenticity and traceability before integration into production schedules.

Supervisors Selection Notes

Select this component when a fixed 4.63 V threshold is required for single-supervision applications. Consider the 560 ms reset delay and active high output polarity during circuit design. Ensure the operating voltage range aligns with the target system's power rails. Evaluate the SOT-143-4 package constraints regarding thermal dissipation and board space availability for optimal performance.

Supervisors Part Context

This component belongs to the ADM812 series of supervisory circuits from Analog Devices. It is functionally comparable to other voltage supervisors offering similar threshold voltages and manual reset capabilities. The series supports various packaging options to accommodate different assembly requirements while maintaining consistent electrical performance specifications across the product line.

Supervisors Replacement Considerations

Public confirmed substitute part numbers include MIC812LUY-TR and MAX812LEUS+T.