ADM8698ARNZ

Supervisors Overview

The ADM8698ARNZ is a microprocessor supervisory circuit manufactured by Analog Devices Inc., designed to monitor voltage levels and generate reset signals. It operates within a supply voltage range of 3 V to 5.5 V, featuring a fixed threshold voltage of 4.65 V for accurate power monitoring. The device provides a push-pull output with a typical reset delay time of 280 ms, ensuring stable system initialization. It functions without manual reset or watchdog timer capabilities, drawing a maximum operating supply current of 100 uA. The component is housed in an 8-SOIC surface-mount package and supports an extended industrial temperature range from -40°C to +85°C.

Supervisors Feature Summary

• Provides reliable voltage supervision with a fixed 4.65 V threshold for precise power management
• Features a push-pull output stage for robust drive capability and fast signal transitions
• Operates with low quiescent current consumption to minimize power loss during active states

Supervisors Applications

• Microprocessor system power supply monitoring
• Embedded controller voltage supervision
• Industrial control board reset generation

Supervisors Procurement Notes

Verify the specific suffix 'ARNZ' to confirm the RoHS-compliant lead-free status and SOIC-8 packaging configuration. Ensure compatibility with existing PCB footprints and thermal requirements. Confirm availability status as distribution channels may vary for this specific variant. Cross-reference the manufacturer's latest datasheet for any updates on recommended operating conditions and electrical characteristics prior to final procurement decisions.

Supervisors Selection Notes

Select the ADM8698ARNZ when a fixed 4.65 V reset threshold is required for systems operating between 3 V and 5.5 V. Choose this part for applications needing a simple push-pull output without additional features like watchdog timers or manual resets. Consider the 8-SOIC package for surface-mount assembly constraints. Evaluate the 280 ms reset delay against system startup timing requirements to ensure adequate power stabilization before processor release from reset.

Supervisors Part Context

The ADM8698 series belongs to Analog Devices' family of microprocessor supervisory circuits, offering improved performance over earlier generations like the ADM698. These components are engineered for reliable voltage monitoring in digital systems. The ADM8698 specifically targets applications requiring a fixed threshold with minimal external component count. It serves as a critical interface between power supplies and logic circuits, ensuring proper system initialization and protection against brown-out conditions.

Supervisors Replacement Considerations

Publicly confirmed parameter-equivalent substitutes include the ADM709LARZ, ADM8699ARNZ, MAX705ESA+, and MAX709LESA+. Verify pinout compatibility and threshold voltage alignment when substituting. Note that some alternatives may offer different package types or additional features such as watchdog timers.