ADM1816-R22ARTZ-R7

Supervisors Overview

The ADM1816-R22ARTZ-R7 is a supervisory circuit manufactured by Analog Devices Inc., designed to monitor system voltage levels. It operates within a supply voltage range of 2.0 V to 5.5 V and features a fixed reset threshold voltage of 2.2 V. The device provides a push-pull active-low output signal with a typical reset delay time of 200 µs. It is housed in a compact SOT-23-3 surface-mount package, suitable for space-constrained applications requiring reliable power management supervision.

Supervisors Feature Summary

• Provides automatic system reset when monitored voltage drops below the specified threshold
• Features an active-low push-pull output driver for direct interface with digital logic
• Operates over a wide supply voltage range compatible with standard single-supply systems

Supervisors Applications

• Portable battery-powered equipment requiring low-voltage detection
• Microcontroller and DSP power supply monitoring circuits
• Embedded systems needing automated brown-out protection

Supervisors Procurement Notes

Verify component authenticity through authorized distribution channels due to potential availability constraints. Confirm package marking and date codes against official datasheet specifications. Ensure storage conditions comply with moisture sensitivity level requirements prior to assembly. Cross-reference ordering information with current manufacturer documentation to validate suffix designations.

Supervisors Selection Notes

Select this component when a fixed 2.2 V threshold is required for voltage supervision. Consider the SOT-23-3 package size for board space limitations. Evaluate the 200 µs reset delay against system startup timing requirements. Compare power consumption characteristics if battery life optimization is critical for the application design.

Supervisors Part Context

This part belongs to the ADM1816 series of ultra-low power reset supervisors from Analog Devices. The series offers various threshold voltages to accommodate different logic families and supply rails. The R22 suffix specifically denotes the 2.2 V trip point variant. These devices are engineered for high reliability in consumer and industrial electronics.

Supervisors Replacement Considerations

Check for ADM1816 variants with different threshold voltages if the 2.2 V setting does not match the target rail. Verify pinout compatibility with existing PCB layouts before substituting similar supervisory ICs from other manufacturers.