ADM812TARTZ-REEL7

Supervisors Overview

The ADM812TARTZ-REEL7 is a voltage supervisory circuit manufactured by Analog Devices Inc., designed for reliable power system monitoring. It operates within a supply voltage range of 1 V to 5.5 V and features a push-pull output type. The device provides a reset delay time of 240 ms with an accuracy of 1.5%. It consumes a typical operating supply current of 60 uA and functions across a temperature range of -40°C to +125°C. Packaged in SOT-23-3, it monitors one input without manual reset or watchdog timer capabilities.

Supervisors Feature Summary

• Provides precise voltage supervision with factory-set thresholds for standard supply voltages
• Features low power consumption suitable for battery-operated applications
• Includes debounced manual reset input for user-initiated system recovery

Supervisors Applications

• Monitoring 2.5 V, 3 V, 3.3 V, and 5 V power supply rails
• Preventing system lockup or damage during power failures
• Enabling user intervention for systems entering undetectable states

Supervisors Procurement Notes

Verify the specific threshold voltage variant required, as the ADM812 series offers options for 2.5 V, 3 V, 3.3 V, and 5 V monitoring. Confirm package compatibility with SOT-23-3 footprints. Ensure design supports the 240 ms reset delay. Check availability status as distribution may be limited in certain regions. Validate RoHS compliance requirements against project specifications.

Supervisors Selection Notes

Select this component when a simple, low-power supervisor is needed for standard voltage rails. Consider the ADM812 over older MAX811/MAX812 equivalents for improved performance across temperature ranges. Choose based on the specific voltage threshold matching the monitored rail. Evaluate if the manual reset feature is necessary for system safety. Compare against ADM809/ADM810 series if different reset delays or thresholds are preferred.

Supervisors Part Context

The ADM812 belongs to the ADM8xx series of microprocessor supervisors from Analog Devices. It serves as a modern upgrade to legacy parts like the MAX811/MAX812, offering enhanced reliability and consistent performance over the full industrial temperature range. The part is categorized under PMIC - Power Management ICs, specifically within the Supervisory Circuits subcategory, targeting embedded and industrial control applications.

Supervisors Replacement Considerations

Public confirmed substitutes include ADM811TARTZ-REEL7 for alternative threshold configurations within the same family. Verify pinout and electrical parameters match before substitution. No direct cross-manufacturer replacements are documented in the provided data.