ADM707ANZ

Supervisors Overview

The ADM707ANZ is a microprocessor supervisory circuit manufactured by Analog Devices Inc., designed for monitoring 5 V power supplies and batteries. It features a precision voltage monitor with a threshold of 4.65 V and an overvoltage threshold of 4.75 V. The device provides a push-pull active high reset output with a fixed pulse width of 200 ms. It operates within a supply voltage range up to 5.5 V, drawing a typical quiescent current of 250 uA. The component supports manual reset inputs and includes power-fail detection capabilities. It is housed in an 8-pin PDIP package and functions reliably across an industrial temperature range from -40°C to +85°C.

Supervisors Feature Summary

• Provides guaranteed valid reset signals down to 1 V supply voltage
• Includes debounced manual reset input for system control
• Features independent watchdog timer functionality for activity monitoring
• Offers power-fail detection for low battery or supply warnings

Supervisors Applications

• Microprocessor systems requiring reliable power supervision
• Controllers needing critical supply monitoring
• Intelligent instruments with strict voltage thresholds
• Computers utilizing 5 V power architectures

Supervisors Procurement Notes

Verify end-of-life status before design finalization as the manufacturer indicates obsolescence. Confirm RoHS compliance details through official documentation. Ensure compatibility with existing PCB footprints for the PDIP-8 package. Check for available replacement components if long-term supply is required. Validate electrical parameters against specific application requirements prior to procurement.

Supervisors Selection Notes

Select this component for applications requiring a simple, low-cost supervisory solution with active high reset outputs. Consider the 4.65 V threshold for standard 5 V systems. Evaluate the 250 uA quiescent current against power budget constraints. Verify that the manual reset feature meets system safety requirements. Compare performance metrics with newer alternatives if extended availability is critical.

Supervisors Part Context

The ADM707ANZ belongs to the ADM707 series of low-cost microprocessor supervisory circuits. This family is engineered to monitor power supplies and ensure system stability during voltage fluctuations. The ANZ suffix denotes a lead-free, RoHS-compliant variant packaged in PDIP-8. These circuits serve as direct upgrades for legacy MAX705-MAX708 devices, offering comparable functionality with modern manufacturing standards.

Supervisors Replacement Considerations

Public confirmed substitute part numbers include ADM707AN and ADM707ARZ. These variants share identical electrical characteristics and pinouts. Verify package type differences between through-hole and surface-mount options. Ensure functional equivalence regarding reset polarity and threshold voltages when substituting.