ADM811MARTZ-REEL7

Supervisors Overview

The ADM811MARTZ-REEL7 is a voltage supervisory circuit manufactured by Analog Devices Inc., designed as a microprocessor reset generator. It operates within a supply voltage range up to 5.5 V and features an active low output type with manual reset capability. The device monitors a single input channel and provides a fixed reset delay time of 560 ms. Key electrical specifications include a threshold voltage of 4.38 V, an overvoltage threshold of 4.46 V, and high accuracy of 1.5%. It consumes a typical operating supply current of 15 uA and supports power dissipation of 200 mW. The component is housed in a SOT-143-4 package suitable for surface mount technology.

Supervisors Feature Summary

• Provides manual reset functionality for system control
• Features active low output signal generation
• Includes dedicated overvoltage detection capability

Supervisors Applications

• Microprocessor system supervision
• Voltage monitoring in portable electronics
• Battery-powered device reset generation

Supervisors Procurement Notes

Verify the specific suffix 'TZ' against official Analog Devices documentation to confirm RoHS compliance status, as availability varies. Confirm the exact reel quantity matches project requirements, as factory packaging may differ from standard cut tape options. Ensure the 4.38 V threshold aligns with target rail voltages before finalizing procurement orders.

Supervisors Selection Notes

Select this variant when a precise 4.38 V threshold is required for systems operating near 5 V rails. The 15 uA quiescent current makes it suitable for battery-operated applications where power conservation is critical. Verify that the 560 ms reset delay meets timing constraints for the connected logic family. Consider the SOT-143-4 footprint compatibility during PCB layout planning.

Supervisors Part Context

This component belongs to the ADM811 series of supervisory circuits from Analog Devices. The series offers various threshold voltages to accommodate different supply rails. The ARTZ suffix indicates specific manufacturing and compliance attributes compared to non-Z variants. These devices are part of the broader PMIC category focused on power management and system reliability.

Supervisors Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.