ADM1811-5ARTZ-RL7

Supervisors Overview

The ADM1811-5ARTZ-RL7 is a voltage supervisory circuit manufactured by Analog Devices Inc., designed for monitoring power supply integrity in electronic systems. It operates within a maximum supply voltage of 5.5 V and features a fixed threshold voltage of 5 V. The device provides a reset delay time of 250 ms to ensure stable system initialization. It utilizes an SOT-23-3 surface-mount package and draws an operating supply current of 16 uA. The output configuration supports open drain or push-pull modes, facilitating direct interfacing with microprocessor reset lines without requiring external components.

Supervisors Feature Summary

• Provides reliable voltage supervision with a dedicated reset output for system safety
• Features low operating supply current suitable for power-sensitive applications
• Includes a fixed reset delay time to prevent premature reset during power-up transients

Supervisors Applications

• Microprocessor system initialization
• Voltage monitoring in portable electronics
• Power supply integrity verification in embedded controllers

Supervisors Procurement Notes

Verify the specific suffix (RL7 vs REEL) against the manufacturer's latest documentation to confirm packaging format and reel specifications. Confirm availability status as distribution channels may list limited stock or end-of-life conditions. Ensure the SOT-23-3 footprint matches the target PCB design. Cross-reference the 5 V threshold requirement with the actual supply rail tolerance to guarantee correct triggering behavior under all operating conditions.

Supervisors Selection Notes

Select this component when a fixed 5 V threshold is required for single-input voltage monitoring. The choice between open drain and push-pull outputs should align with the downstream logic interface requirements. Consider the 16 uA quiescent current if battery life is a critical constraint. Verify that the 250 ms reset delay meets the timing specifications of the controlled microprocessor or FPGA. Ensure the operating temperature range covers the intended environmental conditions.

Supervisors Part Context

This part belongs to the ADM1811 series of supervisory circuits from Analog Devices. It is functionally similar to the ADM1817 and ADM1818 models but differs in output stage configuration and specific feature sets. The series is designed for cost-effective voltage monitoring solutions in consumer and industrial applications where precise power management is essential for system reliability.

Supervisors Replacement Considerations

The ADM1811-5ARTZ-REEL is a variant with different packaging. Direct substitutes like the ADM1817-5ARTZ-RL7 share similar electrical characteristics but may differ in output type or additional features. Verify pin compatibility and electrical parameters before substitution.