ADM690AARM

Supervisors Overview

The ADM690AARM is a single-channel voltage supervisory circuit manufactured by Analog Devices Inc. It operates within a supply voltage range of 4.75 V to 5.5 V and features a fixed threshold voltage of 4.65 V for power monitoring. The device provides a reset output with a minimum timeout of 140 ms and an overvoltage threshold of 4.75 V. It supports battery backup switching and includes power-fail detection capabilities. The component functions in surface-mount 8-MSOP packages and maintains operation across a temperature range of -40°C to +85°C.

Supervisors Feature Summary

• Provides complete single-chip solutions for power supply monitoring and battery control functions
• Features manual reset capability and watchdog timer functionality for system protection
• Includes dedicated battery backup switch and power-fail detection signals

Supervisors Applications

• Power supply monitoring in embedded systems
• Battery control circuits requiring backup switching
• Watchdog timer implementations for microprocessor supervision

Supervisors Procurement Notes

Verify the specific suffix against official Analog Devices documentation to confirm package type and electrical characteristics. Ensure compatibility with the target operating temperature range and supply voltage requirements. Confirm RoHS compliance status for environmental regulations. Cross-reference part numbers carefully as variations exist within the ADM690 family regarding thresholds and reset behaviors.

Supervisors Selection Notes

Select this component when a fixed 4.65 V threshold is required for 5 V CMOS process applications. Consider the 8-MSOP package for space-constrained surface-mount designs. Evaluate the need for manual reset and watchdog features against system complexity. Verify that the 140 ms minimum reset timeout aligns with processor startup requirements.

Supervisors Part Context

The ADM690A belongs to the ADM690/ADM692/ADM802L/M/ADM805L/M family of supervisory circuits from Analog Devices. This series offers integrated solutions for power management tasks including voltage monitoring, reset generation, and battery backup switching. The ADM690 variant specifically targets applications requiring precise threshold monitoring with built-in watchdog and manual reset controls.

Supervisors Replacement Considerations

Consult official Analog Devices substitution guides for verified alternatives. The ADM690AARM may be replaced by other members of the ADM690 family if threshold voltages and package types match. Verify functional equivalence for watchdog and manual reset features before substituting.