The ADM698AN, developed by Analog Devices Inc., is a highly reliable supervisory circuit designed to monitor power supply and microprocessor system functions. Its primary function is to ensure that the electronic system remains within operational parameters, improving the overall system reliability and performance.

Key Features

• Power Monitoring: The ADM698AN offers precise power monitoring capabilities, ensuring that the system is protected from under-voltage conditions. It keeps a watchful eye on the power supply, providing a reset signal to the microprocessor in case of an anomaly.
• Microprocessor Reset: It includes a reset output that remains asserted for a minimum of 200ms after VCC has returned to an acceptable level. This feature allows the microprocessor to restart safely after a power disturbance.
• Watchdog Timer: With an in-built watchdog timer, the ADM698AN can reset a microprocessor if it fails to stroke the watchdog within a preset timeout period, which is crucial for systems that require high reliability and fault tolerance.
• Manual Reset: A manual reset input allows for an external trigger to reset the microprocessor, providing additional control and diagnostic capabilities.
• Fail-Safe Storage: It offers a fail-safe storage feature, ensuring that data is protected during power-down or brownout conditions.

Applications

The ADM698AN is suitable for a wide range of applications, including:

• Microprocessor systems
• Computers and computer peripherals
• Intelligent instruments
• Industrial controllers

Technical Specifications

• Package: The device is available in an 8-pin PDIP (Plastic Dual In-line Package) for easy integration into a variety of circuit designs.
• Supply Voltage Range: It operates over a wide supply voltage range, accommodating various system requirements.
• Temperature Range: The ADM698AN is designed to operate over an extended industrial temperature range, ensuring reliable performance under varying environmental conditions.

Overall, the ADM698AN supervisory circuit by Analog Devices Inc. is a critical component for systems that require vigilant monitoring and control of power supply and processor activity, ensuring the integrity and stability of the entire system.