ADM706ARZ

Supervisors Overview

The ADM706ARZ is a microprocessor supervisory circuit manufactured by Analog Devices Inc. It monitors supply voltages and manages reset signals for digital systems. Key electrical parameters include a quiescent current of 190 uA, a threshold voltage of 4.4 V, and a reset delay time of 200 ms. The device features a watchdog timer with a timeout period of 1.60 seconds and supports manual reset inputs. It operates within a power supply range of 2 V to 5.5 V and dissipates up to 470 mW. The component is housed in an 8-SOIC package and functions across a temperature range of -40 C to +85 C.

Supervisors Feature Summary

• Integrated independent watchdog timer for monitoring processor activity
• Debounced manual reset input compatible with TTL and CMOS logic levels
• Guaranteed valid reset output signal down to 1 V supply voltage
• Push-pull active high reset output configuration

Supervisors Applications

• Microprocessor system supervision
• Computer controller circuits
• Intelligent instrument power management
• Critical microprocessor supply monitoring

Supervisors Procurement Notes

Verify the specific suffix 'ARZ' against the manufacturer's official datasheet to confirm RoHS compliance and lead-free status. Ensure the SOIC-8 package dimensions match the target PCB footprint. Confirm that the 4.4 V threshold voltage aligns with the design requirements for the monitored power rail. Check for any recent product change notices regarding manufacturing site or material composition updates.

Supervisors Selection Notes

Select this component when a low-cost supervisory solution with integrated watchdog functionality is required. The 190 uA quiescent current makes it suitable for battery-powered applications where power efficiency is critical. The 4.4 V threshold is specifically designed for standard 5 V logic systems. Consider the 200 ms reset pulse width to ensure adequate stabilization time for the connected microprocessor before operation begins.

Supervisors Part Context

The ADM706ARZ belongs to the ADM705/ADM706/ADM707/ADM708 family of microprocessor supervisory circuits from Analog Devices. This series provides essential power management functions for digital systems. The ADM706 variant specifically combines voltage monitoring with an independent watchdog timer. It serves as a direct upgrade path for legacy MAX705/MAX708 designs while offering improved performance characteristics.

Supervisors Replacement Considerations

Public confirmed substitute part numbers include ADM706AR and ADM706ARZ-REEL.