ADM693ARZ

Supervisors Overview

The ADM693ARZ is a voltage supervisory circuit manufactured by Analog Devices Inc., designed for monitoring single-input power rails. It operates within a supply voltage range of 4.5 V to 5.5 V, with specific under-voltage and over-voltage thresholds set at 4.25 V and 4.48 V respectively. The device features an open-drain output type and includes a built-in watchdog timer along with a battery backup switch function. It provides a reset delay time of 200 ms and does not support manual reset inputs. The component is housed in a 16-pin SOIC package, suitable for surface mount installation, and functions reliably across an operating temperature range from -40°C to +85°C.

Supervisors Feature Summary

• Integrated watchdog timer functionality for system reliability
• Battery backup switch capability for seamless power transitions
• Open-drain output configuration for flexible interfacing
• Power failure detection mechanism included

Supervisors Applications

• Microprocessor power supply supervision
• Battery backup switching systems
• Watchdog timer implementation in embedded controllers

Supervisors Procurement Notes

Verify the exact suffix and package variant against the official datasheet before ordering, as minor differences can affect pinout or electrical characteristics. Confirm availability status directly with authorized distributors, as stock levels fluctuate. Ensure the selected component matches the required thermal and voltage specifications for your specific application environment to avoid performance issues.

Supervisors Selection Notes

Select this component when a single-channel supervisor with integrated watchdog and battery backup features is required. Compare threshold voltages against your specific rail requirements to ensure proper triggering. Consider the open-drain output compatibility with your microcontroller logic levels. Verify that the SOIC-16 package fits your PCB layout constraints and thermal management needs.

Supervisors Part Context

This part belongs to the ADM693A series of voltage supervisors from Analog Devices. It is specifically engineered for 5V CMOS applications requiring robust power monitoring. The series typically offers various threshold options and package types to suit different design constraints while maintaining consistent core functionality for system protection.

Supervisors Replacement Considerations

Check for direct pin-to-pin replacements within the same family, such as variants with different threshold voltages. Verify if alternative packages like TSSOP are available if space is limited. Ensure any substitute maintains the same watchdog and backup switch capabilities.