ADM811MARTZ-REEL

Supervisors Overview

The ADM811MARTZ-REEL is a voltage supervisory circuit manufactured by Analog Devices Inc., designed for monitoring single-input power rails. 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 lacks a watchdog timer or battery backup switch, focusing on precise voltage supervision. It utilizes a SOT-143-4 surface-mount package and maintains a typical operating supply current of 15 uA. The component ensures system reliability through accurate threshold detection across a wide temperature range.

Supervisors Feature Summary

• Provides manual reset functionality to allow user intervention during system lockups
• Features active low output for direct interface with microprocessor reset pins
• Delivers precise voltage supervision with high accuracy for critical power rails

Supervisors Applications

• Microprocessor system power monitoring
• Battery-powered device voltage supervision
• Industrial control system reset generation

Supervisors Procurement Notes

Verify the exact suffix configuration against official Analog Devices documentation to ensure correct threshold voltage selection. Confirm availability status as distribution channels may list limited stock or end-of-life conditions. Cross-reference the manufacturer part number with authorized distributor catalogs to validate authenticity and traceability before procurement.

Supervisors Selection Notes

Select this component when a fixed threshold voltage near 4.38 V is required for single-rail supervision. Consider the SOT-143-4 package constraints for PCB layout and thermal management. Evaluate the absence of watchdog features if complex timing sequences are needed, ensuring the manual reset capability meets the specific system recovery requirements.

Supervisors Part Context

This part belongs to the ADM811 series of voltage supervisors from Analog Devices. The series offers various threshold options for standard voltage rails. The MARTZ suffix indicates specific electrical characteristics and packaging details distinct from other variants in the family, ensuring compatibility with designs requiring precise 4.38 V monitoring thresholds.

Supervisors Replacement Considerations

The MIC811MUY-TR from Microchip Technology is documented as a parameter-equivalent alternative. Verify pinout compatibility and threshold voltage alignment before substitution. Ensure that the replacement part meets the same operating temperature and supply voltage specifications.