ADM1816-R22ART-RL

Supervisors Overview

The ADM1816-R22ART-RL is a single-channel voltage supervisory circuit manufactured by Analog Devices Inc. It operates within a supply voltage range up to 5.5 V and features a fixed threshold voltage of 2.18 V for monitoring power rails. The device provides an active-low open-drain reset output with an internal pull-up resistor, suitable for interfacing with various logic families. It includes a typical reset delay time of 250 ms to ensure stable power conditions before asserting the reset signal. Packaged in a compact SOT-23-3 surface-mount case, it supports operation across industrial temperature ranges.

Supervisors Feature Summary

• Provides simple reset or power-on reset functionality for microprocessor systems
• Features an active-low open-drain output with integrated internal pull-up resistor
• Designed for low-cost, space-saving applications using SOT-23 packaging

Supervisors Applications

• Microprocessor reset circuits
• Power supply supervision for 3.3 V, 3 V, and 2.5 V rails
• Battery-powered system monitoring

Supervisors Procurement Notes

Verify the specific suffix ART-RL against official Analog Devices documentation to confirm tape-and-reel packaging and exact threshold specifications. Ensure compatibility with your board's thermal and electrical requirements. Cross-reference part numbers carefully as variations exist within the ADM1816 family. Confirm RoHS compliance status through current manufacturer certificates. Validate that the 2.18 V threshold matches your design needs.

Supervisors Selection Notes

Select this component when a fixed 2.18 V threshold is required for monitoring lower voltage supplies such as 3.3 V or 3 V systems. The open-drain output allows flexibility in connecting to different logic levels via external pull-ups if needed. Consider the 250 ms reset delay for application timing constraints. The SOT-23-3 package is ideal for space-constrained designs requiring surface-mount technology.

Supervisors Part Context

The ADM1816 belongs to the ADM181x series of microprocessor reset circuits from Analog Devices. This series offers cost-effective solutions for power management in embedded systems. The ADM1816 specifically targets applications needing supervision of lower voltage rails. It complements other variants like the ADM1815 and ADM1817 which offer different thresholds.

Supervisors Replacement Considerations

Check for ADM1816-R22ARTZ-RL for lead-free versions. Verify functional equivalence with DS1816R-5+T&R only if threshold adjustments are acceptable. Consult Analog Devices for direct substitutes within the ADM181x family.