ADM812RART-REEL

Supervisors Overview

The ADM812RART-REEL is a supervisory circuit manufactured by Analog Devices Inc., designed to monitor a single voltage supply line. It operates within a supply voltage range of 1.0V to 5.5V and features a fixed reset threshold voltage of 2.63V. The device provides an active-low push-pull output and includes a manual reset input for system control. It incorporates a programmable watchdog timer with a timeout period of 1.4 seconds, which can be configured via an external capacitor. The component is housed in a compact SOT-23-3 package and is rated for operation across an industrial temperature range of -40°C to +125°C.

Supervisors Feature Summary

• Integrates a watchdog timer with a 1.4-second timeout period for enhanced system reliability
• Features a manual reset input allowing direct user control over the reset state
• Provides an active-low push-pull output driver for robust signal interfacing
• Supports wide supply voltage monitoring from 1.0V to 5.5V

Supervisors Applications

• Microprocessor system power supervision
• Portable equipment battery monitoring
• Industrial control system reset generation
• Consumer electronics power management

Supervisors Procurement Notes

Verify the specific suffix 'RART' against the manufacturer's current datasheet to confirm pinout compatibility and electrical specifications. Ensure the reel packaging quantity matches your assembly requirements. Confirm that the active-low output polarity aligns with your target microcontroller or logic interface. Check for any recent lifecycle status updates regarding availability or obsolescence before finalizing procurement plans.

Supervisors Selection Notes

Select this component when a fixed 2.63V threshold is appropriate for the monitored rail. The integrated watchdog timer simplifies design compared to discrete solutions requiring separate timing components. Consider the SOT-23-3 package size constraints and ensure the manual reset functionality meets system safety requirements. Verify that the operating temperature range covers the intended environmental conditions.

Supervisors Part Context

This part belongs to the ADM81x series of supervisory circuits from Analog Devices, which are widely used for power management applications. The series offers various threshold voltages and output configurations to suit different system needs. The ADM812 variant specifically combines voltage monitoring with watchdog functionality in a minimal footprint, making it suitable for space-constrained designs.

Supervisors Replacement Considerations

Check for ADM812 variants with different threshold voltages if the 2.63V level is unsuitable. Verify pin-to-pin compatibility with other SOT-23-3 supervisor ICs from Analog Devices or competitors. Ensure replacement parts maintain the same active-low output polarity and manual reset capability.