ADM706AR-REEL

Supervisors Overview

The ADM706AR-REEL is a microprocessor supervisory circuit manufactured by Analog Devices Inc., designed for monitoring power supplies and battery levels. It features a precision voltage monitor with a threshold of 4.4 V and an independent watchdog timer with a 1.60-second timeout. The device guarantees a valid reset signal when VCC equals 1 V, utilizing a 200 ms reset pulse width. It operates within a temperature range of -40°C to +85°C, consumes 190 μA of quiescent current, and supports manual reset inputs. The component is packaged in an 8-SOIC format.

Supervisors Feature Summary

• Includes an independent watchdog timer with a 1.60-second timeout interval for system activity monitoring
• Provides debounced TTL/CMOS manual reset input capability for user-initiated control
• Ensures valid reset output state even at low supply voltages down to 1 V
• Features active low push-pull reset output structure

Supervisors Applications

• Microprocessor systems requiring reliable power supervision
• Computer hardware power management circuits
• Industrial controllers needing watchdog functionality
• Intelligent instruments with critical supply monitoring needs

Supervisors Procurement Notes

Verify the specific suffix REEL7 against official Analog Devices documentation to confirm tape-and-reel packaging specifications. Confirm RoHS compliance status as distributor listings may vary. Ensure the source document explicitly identifies this part number as a voltage supervisor IC rather than a multiplexer or other function. Cross-reference the manufacturer part number directly with the datasheet to avoid confusion with similar ADM706 variants.

Supervisors Selection Notes

Select this component when a fixed 4.4 V threshold is required for 5 V system monitoring. The integrated watchdog timer distinguishes it from simpler supervisors lacking timeout protection. Verify that the SOIC-8 package fits the PCB layout constraints. Consider the 190 μA quiescent current if power efficiency is a primary design constraint compared to lower-power alternatives.

Supervisors Part Context

This part belongs to the ADM705/ADM706/ADM707/ADM708 series of low-cost microprocessor supervisory circuits. These devices are engineered to monitor 5 V power supplies and batteries while also tracking microprocessor activity. The series serves as a superior upgrade path for legacy MAX705 to MAX708 designs, offering comparable functionality with modern manufacturing standards.

Supervisors Replacement Considerations

Publicly confirmed substitute part numbers include ADM706ARZ and ADM706TARZ. These variants share the same core supervisory functions but differ in packaging or lead-free compliance. Verify pinout compatibility before substitution.