ADM690AARMZ-REEL

Supervisors Overview

The ADM690AARMZ-REEL is a voltage supervisory circuit manufactured by Analog Devices Inc., housed in an 8-MSOP surface-mount package. It monitors a single input channel with a fixed threshold voltage of 4.65 V and an overvoltage threshold of 4.75 V. The device features an open-collector output type, a reset delay time of 200 ms, and includes a watchdog timer and battery backup switch functionality. It operates within a supply voltage range up to 5.5 V, consumes 100 uA of working power current, and dissipates 500 mW of power. The component supports manual reset absence and chip enable absence, functioning reliably across a temperature range from -40 C to +85 C.

Supervisors Feature Summary

• Integrates a watchdog timer for system reliability monitoring
• Includes battery backup switch capability for data retention
• Provides power failure detection signals
• Features open-collector output configuration

Supervisors Applications

• Microprocessor reset circuits
• Battery backup switching systems
• CMOS RAM write protection
• Power supply management monitoring

Supervisors Procurement Notes

Verify the specific suffix REEL against official Analog Devices documentation to confirm tape-and-reel packaging specifications. Confirm RoHS compliance status and moisture sensitivity level prior to integration. Ensure the source document explicitly lists this part number variant as available or discontinued, as availability data may vary by region and distributor.

Supervisors Selection Notes

Select this component when a fixed 4.65 V threshold is required for single-channel supervision. The open-collector output necessitates external pull-up resistor consideration. Verify that the 200 ms reset delay meets system timing requirements. Ensure the operating temperature range aligns with the application environment constraints.

Supervisors Part Context

This part belongs to the ADM690A series of supervisory circuits designed for CMOS processes. It is functionally related to other variants in the ADM690 family, such as the ADM690AARNZ, which may differ in packaging or reel specifications. The device serves as a dedicated power management IC within the broader PMIC category.

Supervisors Replacement Considerations

Publicly confirmed substitute part numbers include MAX817LCUA+.