ADM708RARZ-REEL

Supervisors Overview

The ADM708RARZ-REEL is a voltage supervisory circuit manufactured by Analog Devices Inc., designed to monitor power supply integrity in electronic systems. It operates within a supply voltage range of 4.75 V to 5.5 V and features a typical reset threshold voltage of 4.4 V, with an overvoltage threshold of 4.5 V. The device provides a push-pull output driver and includes a manual reset input for system control. It has a reset delay time of 200 ms and consumes a maximum supply current of 250 uA. The component supports power fail detection and is housed in an SOIC-8 package, operating across a temperature range of -40°C to +85°C.

Supervisors Feature Summary

• Monitors single-channel voltage supply with precise threshold detection
• Provides active-high reset signal via push-pull output driver
• Includes manual reset input for forced system initialization
• Detects power failure conditions independently of reset generation

Supervisors Applications

• Microprocessor system power supervision
• Battery-powered equipment voltage monitoring
• Industrial control system reset management
• Consumer electronics power integrity verification

Supervisors Procurement Notes

Verify the specific suffix REEL indicates tape-and-reel packaging configuration when sourcing components. Confirm that the part status aligns with project lifecycle requirements, as availability may vary by region. Ensure compatibility with existing PCB footprint and reflow soldering profiles specified for SOIC-8 packages. Cross-reference manufacturer documentation for any recent design changes or obsolescence notices prior to final procurement decisions.

Supervisors Selection Notes

Select this component when a fixed 4.4 V threshold is required for 5 V logic systems. Consider the push-pull output capability for direct interfacing with digital inputs without external pull-up resistors. Evaluate the 200 ms reset delay against system startup timing requirements. Verify that the absence of a watchdog timer meets the application's fault recovery strategy, as this variant lacks internal watchdog functionality compared to other family members.

Supervisors Part Context

The ADM708RARZ-REEL belongs to the ADM708 series of voltage supervisors from Analog Devices. This series focuses on simple reset generation and power fail detection without integrated watchdog timers. It serves as a cost-effective solution for basic power monitoring needs in embedded systems where complex fault handling is not required.

Supervisors Replacement Considerations

ADM708ARZ (tube packaging) offers identical electrical characteristics with different physical packaging. ADM708SARZ provides a lower threshold voltage option if system requirements differ.