ADM1811-5ARTZ-REEL

Supervisors Overview

The ADM1811-5ARTZ-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 an active low open-drain output with an internal pull-up resistor. The device provides trip point options of 4.62 V and 4.35 V typical, ensuring reliable reset generation. It includes a fixed reset delay time of 250 ms and functions across an operating temperature range from -40°C to +105°C. Packaged in a compact 3-lead SOT-23 format, it supports surface mount installation.

Supervisors Feature Summary

• Active low open-drain output configuration with integrated internal pull-up resistor
• Fixed 250 ms reset delay time for stable system initialization
• Compact 3-lead SOT-23 surface-mount package design

Supervisors Applications

• Microprocessor power supply supervision
• Battery-powered system voltage monitoring
• Portable electronic device reset generation

Supervisors Procurement Notes

Verify component authenticity through authorized Analog Devices distributors or certified partners. Confirm the specific suffix REEL indicates reel packaging. Check current availability status as supply may be limited. Ensure the operating temperature range meets your environmental requirements. Validate that the open-drain output type matches your circuit interface needs before procurement.

Supervisors Selection Notes

Select this component when a simple, low-pin-count supervisor is required for 5V systems. The open-drain output allows flexibility in interfacing with various logic families. Consider the 250 ms delay duration against your system startup timing requirements. Verify that the 4.62 V or 4.35 V trip points align with your specific voltage threshold needs. Ensure the SOT-23-3 footprint fits your PCB layout constraints.

Supervisors Part Context

This part belongs to the ADM1811 series of microprocessor supervisory circuits. It is distinct from variants like the ADM1817 which may offer push-pull outputs. The REEL suffix denotes tape-and-reel packaging for automated assembly. It serves as a dedicated voltage monitor rather than a complex watchdog timer or multi-channel supervisor.

Supervisors Replacement Considerations

Check for direct substitutes within the ADM1811 family with compatible output types. Verify pinout compatibility with existing SOT-23-3 footprints. Ensure replacement parts maintain the same reset delay and voltage thresholds. Confirm that alternative components support the required operating temperature range.