ADM708ARM-REEL

Supervisors Overview

The ADM708ARM-REEL is a microprocessor supervisory circuit from Analog Devices, designed for monitoring 5 V power supplies and batteries. It features a precision voltage monitor with a threshold of 4.40 V and provides an active high reset output. The device guarantees valid RESET signals even when VCC drops to 1 V, with a typical quiescent current of 190 μA. It includes a debounced manual reset input and operates within a temperature range of -40°C to +85°C. Packaged in an 8-SOIC format, it lacks a watchdog timer but offers reliable power-fail detection for critical systems.

Supervisors Feature Summary

• Provides active high reset output for precise power supply monitoring
• Guarantees valid reset functionality down to 1 V supply voltage
• Includes debounced manual reset input compatible with TTL/CMOS logic

Supervisors Applications

• Microprocessor systems requiring critical supply monitoring
• Computer hardware and controller units
• Intelligent instruments and portable devices

Supervisors Procurement Notes

Verify the specific suffix ARM-REEL against official Analog Devices documentation to confirm reel packaging and tape specifications. Confirm end-of-life status or obsolescence notices prior to procurement planning. Ensure compatibility with existing PCB footprints for the 8-SOIC package. Cross-reference manufacturer part numbers to avoid counterfeit components during sourcing.

Supervisors Selection Notes

Select this component when an active high reset signal is required rather than the standard active low configuration found in other series variants. It is suitable for applications needing a 4.40 V threshold without integrated watchdog timer functionality. Consider the 190 μA quiescent current for battery-powered designs where low standby consumption is prioritized over ultra-low power alternatives.

Supervisors Part Context

This part belongs to the ADM705/ADM706/ADM707/ADM708 family of microprocessor supervisory circuits. It serves as a successor to older Maxim Integrated MAX708 series devices. The ADM708 variant specifically distinguishes itself by providing an active high reset output, differentiating it from the active low outputs of the ADM706 and ADM707 counterparts within the same product line.

Supervisors Replacement Considerations

MAX708CSA+ and MAX708RESA+ are documented similar replacements within the Analog Devices portfolio. Verify pinout compatibility and reset polarity requirements before substitution.