ADM706SAR-REEL

Supervisors Overview

The ADM706SAR-REEL is a microprocessor supervisory circuit from Analog Devices Inc., designed for monitoring power supplies and battery systems. It operates within a voltage range of 1.0 V to 5.5 V with a typical quiescent current of 190 μA. The device features a precision voltage monitor with a threshold of 4.40 V, an independent watchdog timer with a 1.60-second timeout, and a debounced manual reset input. It provides a low-active push-pull reset output with a 200 ms pulse width and functions reliably down to 1 V. Packaged in an 8-pin SOIC-N surface-mount format, it supports industrial temperatures from -40°C to +85°C.

Supervisors Feature Summary

• Integrates an independent watchdog timer with a fixed 1.60-second timeout for system activity monitoring
• Provides a debounced manual reset input compatible with TTL/CMOS logic levels
• Ensures valid reset output states even when supply voltage drops as low as 1 V
• Includes a precision voltage monitor for detecting power-fail or low-battery conditions

Supervisors Applications

• Microprocessor systems requiring critical power supervision
• Controllers and intelligent instruments needing reliable reset generation
• Computer systems utilizing 5 V power supply monitoring
• Battery-powered devices with low-voltage warning requirements

Supervisors Procurement Notes

Verify the exact suffix against official Analog Devices documentation, as variations like SARZ indicate RoHS compliance while REEL specifies tape-and-reel packaging. Confirm availability status directly with authorized distributors, as stock levels fluctuate. Ensure the ordering part number matches the required package type and temperature grade for your specific design implementation.

Supervisors Selection Notes

Select this component when a dedicated watchdog timer and manual reset capability are required alongside standard voltage supervision. It serves as a direct upgrade for legacy MAX705/MAX708 designs. Consider the 190 μA quiescent current for power-sensitive applications. Verify that the 4.40 V threshold aligns with your system's nominal voltage rails before finalizing the design.

Supervisors Part Context

This part belongs to the ADM705/ADM706/ADM707/ADM708 family of microprocessor supervisory circuits. These devices are engineered to monitor 5 V supplies and batteries while tracking microprocessor activity. The family offers various output polarities and threshold options, with the ADM706 specifically providing a low-active reset output and an integrated watchdog function.

Supervisors Replacement Considerations

The ADM706SARZ is a verified equivalent offering identical functionality with RoHS-compliant construction. Other family members like the ADM705 or ADM707 may serve as alternatives if different reset polarities or thresholds are acceptable.