ADM708TARZ

The ADM708TARZ from Analog Devices is a microprocessor supervisory circuit suitable for monitoring 3 V or 3.3 V power supplies. It generates a reset output during power-up, power-down, and brownout conditions, ensuring system stability. The reset output remains valid even with VCC as low as 1 V.

Key features include a precision supply voltage monitor with a nominal threshold of 3.08 V for the ADM706T/ADM708T variants. It operates with a low quiescent current of 100 µA and provides a reset pulse width of 200 ms. An independent watchdog timer with a 1.6-second timeout is included for monitoring microprocessor activity. The ADM708TARZ also features a 1.25 V threshold detector for power fail warnings or low battery detection, and an active low debounced manual reset (MR) input.

This supervisory circuit is designed for critical microprocessor monitoring in various applications, including computers, controllers, intelligent instruments, battery-operated systems, and portable instruments. It is offered in an 8-SOIC package and supports surface mount installation.

The ADM708TARZ serves as a superior upgrade for Maxim Integrated's MAX706P/R/S/T and MAX708R/S/T series, offering enhanced performance and reliability for robust system designs.