ADM708SAR

Supervisors Overview

The ADM708SAR is a processor supervisor integrated circuit manufactured by Analog Devices Inc. It monitors a single voltage input with a typical reset threshold of 2.93V, ranging from 2.85V to 3.0V. The device operates within a supply voltage range of 1.0V to 5.5V and features an active high/active low push-pull output driver. Key electrical parameters include a maximum reset active time of 280ms, a maximum supply current of 350uA, and power dissipation of 470mW. It supports manual reset functionality without a watchdog timer or battery backup switch. The component is housed in an 8-pin SOIC-N package and is rated for industrial temperatures between -40°C and +85°C.

Supervisors Feature Summary

• Provides precise voltage supervision with factory-set reset thresholds for reliable system monitoring
• Features a versatile push-pull output driver compatible with both active high and active low logic configurations
• Includes manual reset capability allowing external control over the reset state

Supervisors Applications

• Microprocessor and microcontroller system reset generation
• Battery-powered equipment requiring low standby current supervision
• Industrial control systems operating within extended temperature ranges

Supervisors Procurement Notes

Verify the specific suffix 'SAR' against official Analog Devices documentation to confirm the exact package type and temperature grade. Confirm availability status as distribution channels may list obsolete or limited stock items. Ensure compatibility with existing PCB footprint designs before procurement.

Supervisors Selection Notes

Select this component when a fixed threshold supervisor is required for voltages near 3V. Consider the 350uA maximum supply current for power-sensitive designs. Verify that the 280ms maximum reset delay meets system timing requirements. Compare against other MAX708 variants if different packages or temperature ranges are needed.

Supervisors Part Context

The ADM708SAR belongs to the ADM708/MAX708 family of voltage supervisory circuits. This series provides cost-effective solutions for monitoring power rails in digital systems. The part integrates essential reset functions into a compact surface-mount package, serving as a standard component for ensuring stable power-up sequences in embedded applications.

Supervisors Replacement Considerations

Direct pin-compatible substitutes within the same family include ADM708SARZ and MAX708SESA+. Verify that replacement parts maintain identical threshold voltages and output drive characteristics. Check for any changes in RoHS compliance or manufacturing origin when sourcing alternatives.