Product Overview: ADM690AN from Analog Devices Inc.

The ADM690AN is a robust, high-precision microprocessor supervisory circuit designed by Analog Devices Inc. to cater to the demanding needs of microprocessor systems. This component ensures reliable operation and stability by providing essential functions such as power supply monitoring, power-on reset control, backup battery switchover, and a watchdog timer.

Key Features

• Power Monitoring: The ADM690AN actively monitors the power supply voltage. It can detect out-of-tolerance power supply conditions and ensure that the microprocessor is reset during power-up, power-down, and brownout conditions.
• Reset Output: This device generates a reset signal whenever the V_CC supply voltage falls below a preset threshold, maintaining it until the supply voltage recovers and stabilizes. The reset output remains operational with V_CC as low as 1.3V.
• Battery Backup Switching: In the event of a power failure, the ADM690AN automatically switches to a backup battery to maintain power to the memory and real-time clock functions in microprocessor systems.
• Watchdog Timer: The built-in watchdog timer serves as an independent system monitor, which can be used to reset the microprocessor if it fails to strobe within a preset timeframe, indicating a system malfunction.
• Low Power Consumption: Designed for efficient operation, the ADM690AN features a low power consumption, making it suitable for power-sensitive applications.

Applications

The ADM690AN is an ideal solution for a wide array of applications that require reliable microprocessor system management. It is commonly used in microcomputer systems, embedded controllers, intelligent instruments, and portable battery-powered equipment.

Technical Specifications

Conclusion

The ADM690AN from Analog Devices Inc. represents a sophisticated, yet cost-effective solution for system stability and reliability. Its diverse array of features ensures that it can meet the stringent requirements of critical microprocessor-controlled applications, making it a go-to choice for engineers and system integrators worldwide.