ADM708AR

Supervisors Overview

The ADM708ARZ is a microprocessor supervisory circuit designed for monitoring 5 V power supplies and batteries. It features a precision voltage monitor with a typical reset threshold of 4.40 V. The device provides a 200 ms reset pulse width to ensure stable system initialization. It includes a debounced TTL/CMOS manual reset input (MR) and an active high push-pull reset output. The quiescent current is typically 190 μA, supporting low-power applications. The component operates within a supply voltage range of 1 V to 5.5 V and supports industrial temperature ranges from -40°C to +85°C.

Supervisors Feature Summary

• Precision voltage monitoring with defined thresholds for reliable power supervision
• Active high reset output ensuring valid logic states during power transitions
• Debounced manual reset input compatible with standard digital logic levels
• Low quiescent current consumption suitable for battery-powered systems

Supervisors Applications

• Microprocessor systems requiring stable power sequencing
• Computer hardware for power-fail detection and reset generation
• Industrial controllers needing reliable supervisor circuits
• Intelligent instruments with critical supply monitoring requirements

Supervisors Procurement Notes

Verify the specific suffix against official Analog Devices documentation to confirm package type and tape/reel specifications. Ensure the part number matches the required operating temperature range and electrical characteristics for your design. Cross-reference with authorized distributors to confirm availability and authenticity. Check for any recent revisions or obsolescence notices from the manufacturer before finalizing procurement plans.

Supervisors Selection Notes

Select this component when a simple, low-cost supervisor with an active high output is required. It is suitable for 5 V systems where a 4.40 V threshold is appropriate. Consider alternatives if watchdog timer functionality or active low outputs are needed. Verify that the 200 ms delay meets the timing requirements of the target microprocessor.

Supervisors Part Context

The ADM708AR belongs to the ADM705/ADM706/ADM707/ADM708 family of microprocessor supervisory circuits manufactured by Analog Devices. This series is designed as a superior upgrade for legacy MAX705-MAX708 devices. The ADM708 variant specifically offers an active high reset output and lacks the watchdog timer found in the ADM705/ADM706 models, focusing on voltage monitoring and reset generation.

Supervisors Replacement Considerations

The ADM708ARZ-REEL is a reel-packaged version of the same functional device. Other variants in the ADM708 family may offer different thresholds or packages. Verify pin compatibility and electrical parameters before substituting with other manufacturers' parts.