ADM707ARZ

Supervisors Overview

The ADM707ARZ is a microprocessor supervisory circuit designed for monitoring 5V power supplies and batteries. It features a precision voltage monitor with a threshold of 4.65V and guarantees a valid RESET signal when VCC equals 1V. The device provides an active high reset output with a fixed pulse width of 200ms. It includes a debounced TTL/CMOS manual reset input (MR) and operates with a quiescent current of 190μA. The component is housed in an 8-SOIC package and supports surface mount installation.

Supervisors Feature Summary

• Precision supply voltage monitoring at 4.65V threshold
• Active high reset output with guaranteed validity down to 1V
• Debounced manual reset input compatible with TTL/CMOS logic
• Low power consumption with 190μA quiescent current

Supervisors Applications

• Microprocessor systems requiring stable power supervision
• Computers needing reliable reset generation during power anomalies
• Controllers ensuring safe operation in industrial environments
• Intelligent instruments demanding critical supply monitoring

Supervisors Procurement Notes

Verify the specific suffix configuration against official Analog Devices documentation, as packaging variations such as REEL or REEL7 may exist. Confirm RoHS compliance status through the manufacturer's latest datasheet. Check for obsolescence notices, as this component family has faced discontinuation risks. Ensure the selected variant matches the required thermal and electrical specifications for the target application environment.

Supervisors Selection Notes

Select the ADM707ARZ when an active high reset output is required, distinguishing it from the ADM705/ADM706 series which lack this feature. This model is suitable for applications needing a simple supervisory function without a watchdog timer, unlike the ADM705/ADM706 variants. Consider the 4.65V threshold specifically for 5V system monitoring. Evaluate the 190μA static current for battery-powered designs where efficiency is critical.

Supervisors Part Context

The ADM707ARZ belongs to the ADM705/ADM706/ADM707/ADM708 series of low-cost microprocessor supervisory circuits manufactured by Analog Devices Inc. These devices serve as superior upgrades to legacy MAX705-MAX708 components, offering improved accuracy and lower power consumption. The series is engineered to ensure system stability by detecting power failures and generating appropriate reset signals for digital logic.

Supervisors Replacement Considerations

Public confirmed substitute part numbers include ADM707ANZ and ADM707ARMZ. Verify pinout compatibility and electrical parameters before substitution.