ADM708SANZ

Supervisors Overview

The ADM708SANZ is a microprocessor supervisory circuit from Analog Devices, designed for monitoring power supplies and battery levels. It features a typical reset threshold voltage of 4.4 V and operates within a supply voltage range of 1 V to 5.5 V. The device provides an active high push-pull reset output with a fixed reset pulse width of 200 ms. It includes a debounced manual reset input and supports industrial operating temperatures from -40°C to +85°C. Packaged in an 8-SOIC surface-mount format, it draws a maximum quiescent current of 350 µA.

Supervisors Feature Summary

• Provides precise voltage supervision with guaranteed valid reset signals at low supply voltages
• Features a debounced manual reset input compatible with TTL and CMOS logic levels
• Delivers an active high reset output suitable for direct interfacing with microprocessors

Supervisors Applications

• Microprocessor system power supply monitoring
• Battery-powered equipment low-voltage detection
• Industrial controller critical supply supervision

Supervisors Procurement Notes

Verify the specific suffix 'S' indicates the SOIC-8 package variant when sourcing replacements. Confirm RoHS compliance status as manufacturing processes evolve. Check for end-of-life notifications or last-time buy dates from official Analog Devices channels before finalizing procurement plans.

Supervisors Selection Notes

Select this component for applications requiring a simple, cost-effective supervisor with an active high output. Ensure the 4.4 V threshold aligns with the monitored rail's minimum operating voltage. Consider the 200 ms reset delay duration relative to the target processor's startup requirements.

Supervisors Part Context

This part belongs to the ADM705/ADM706/ADM707/ADM708 family of low-cost supervisory circuits. While other variants offer different thresholds or watchdog timers, the ADM708 specifically provides an active high output without an integrated watchdog timer, distinguishing it from the ADM705 and ADM706 models.

Supervisors Replacement Considerations

Public confirmed substitute part numbers include MAX708CPA+ and MAX708EPA+. Verify pinout compatibility and electrical parameter alignment before substitution.