ADM708ARZ-REEL

Supervisors Overview

The ADM708ARZ-REEL is a microprocessor supervisory circuit designed for monitoring 5 V power supplies and batteries. It features a precision voltage monitor with a 4.40 V threshold, ensuring reliable system reset during power fluctuations. The device provides an active high reset output and guarantees RESET validity down to VCC = 1 V. Key electrical parameters include a quiescent current of 190 μA, a reset pulse width of 200 ms, and a debounced TTL/CMOS manual reset input (MR). It operates within a temperature range of -40°C to +85°C and is housed in an 8-SOIC package.

Supervisors Feature Summary

• Provides active high reset output for precise power supply monitoring
• Guarantees valid reset signal at low supply voltages down to 1 V
• Includes debounced manual reset input compatible with TTL and CMOS logic
• Features low quiescent current consumption for battery-powered applications

Supervisors Applications

• Microprocessor systems requiring critical supply monitoring
• Computers and controllers needing reliable power-fail detection
• Intelligent instruments and portable devices with battery operation
• Critical microprocessor supply monitoring in industrial environments

Supervisors Procurement Notes

Verify component authenticity through authorized Analog Devices distributors or certified partners. Confirm the specific suffix 'REEL' indicates tape-and-reel packaging suitable for automated assembly processes. Check for RoHS compliance status and ensure the part number matches the exact revision required for your design. Request official datasheets and test reports to validate performance specifications against application requirements before finalizing procurement decisions.

Supervisors Selection Notes

Select this component when an active high reset output is specifically required for the target microprocessor architecture. Consider the 4.40 V threshold if monitoring standard 5 V rails or higher voltage battery packs. Evaluate the 190 μA quiescent current against system power budget constraints. Ensure the 8-SOIC package dimensions fit the PCB layout constraints. Verify compatibility with the system's manual reset input logic levels and timing requirements.

Supervisors Part Context

The ADM708ARZ-REEL belongs to the ADM705/ADM706/ADM707/ADM708 family of microprocessor supervisory circuits from Analog Devices. This series offers various reset polarities and thresholds to suit different monitoring needs. The ADM708 variant specifically distinguishes itself by providing an active high reset output, unlike the active low outputs found in other family members. It serves as a robust solution for ensuring system stability during power-up and power-down sequences.

Supervisors Replacement Considerations

Direct replacements within the same family include ADM708ARMZ and ADM708RANZ, which share identical functional characteristics but may differ in packaging or reel specifications. Cross-family alternatives like ADM706 variants require verification of reset polarity differences. Always confirm pinout compatibility and electrical parameter alignment before substituting components in existing designs.