The ADM8691ARW from Analog Devices Inc. is a highly reliable microprocessor supervisory circuit designed to monitor power supplies in microprocessor systems. It provides a significant number of features that ensure the stable operation of microprocessor (µP) systems, especially during power-up, power-down, and brown-out conditions. This device is essential for systems that require precise monitoring and management of power supply and system health.

Key Features

• Power Monitoring: The ADM8691ARW offers precise monitoring of power supply voltages, ensuring that the microprocessor has a stable and adequate supply for operation.
• Power-on Reset: It generates a reset signal to the microprocessor upon power-up, power-down, or during a brown-out, allowing the system to start in a known state.
• Low Power Consumption: This supervisory circuit is designed for low power consumption, making it suitable for power-sensitive applications.
• Watchdog Timer: The integrated watchdog timer ensures that the microprocessor system is operating correctly and can reset the system in case of a malfunction.
• Fail-Safe Output: The ADM8691ARW features a fail-safe output that provides a system reset in case of a power failure.
• Automatic Battery Backup Switching: It includes a circuit to automatically switch to backup battery power when the main power supply fails, ensuring uninterrupted operation.

Applications

The ADM8691ARW is suitable for a wide range of applications, including:

• Microprocessor systems
• Computers and computer peripherals
• Embedded systems
• Industrial control systems
• Portable battery-powered equipment

Technical Specifications

The device comes in a 16-lead SOIC (Small Outline Integrated Circuit) wide body package and operates over an industrial temperature range. It is designed to monitor a 4.65V power supply and features an active-low reset output. The ADM8691ARW can be used in systems with a manual reset requirement, thanks to its manual reset input.

For further information, datasheets, and support, customers are encouraged to visit Analog Devices Inc.'s official website or contact their sales and support team.