The ADM823 from Analog Devices Inc. is a highly reliable supervisory circuit designed to monitor power supply voltage levels and system activity in microprocessor systems. This innovative component ensures that your electronic equipment operates within safe voltage parameters, enhancing system stability and reliability.

Key Features of the ADM823

• Power Supply Monitoring: The ADM823 offers precise monitoring of 2.5V, 3.0V, 3.3V, and 5.0V power supplies, ensuring that your system is protected from undervoltage conditions.
• Manual Reset Input: A manual reset input is provided, allowing for a system reset to be initiated by an external signal, offering additional control and safety.
• Reset Timeout: The device features an adjustable reset timeout period, giving designers the flexibility to set the reset assertion time according to their system requirements.
• Low Power Consumption: With its low power consumption, the ADM823 is an excellent choice for power-sensitive applications, helping to extend the battery life of portable devices.
• Push-Pull, Active Low Reset Output: The output stage of the ADM823 is of the push-pull variety, providing a strong active low reset signal without the need for an external pull-up resistor.

Applications

The ADM823 is versatile and can be used in a wide range of applications, including:

• Portable and battery-powered equipment
• Microprocessor and microcontroller systems
• Intelligent instruments
• Industrial and automotive systems
• Data storage equipment
• Medical devices

Technical Specifications

The ADM823 supervisory circuit is characterized by its tight voltage monitoring accuracy and low power consumption. It operates over a wide temperature range, making it suitable for various environments. The device is available in a compact SOT-23 package, facilitating integration into space-constrained designs.

Conclusion

With its robust feature set and Analog Devices' reputation for quality, the ADM823 is an essential component for any system requiring reliable voltage monitoring and reset functions. It is an ideal solution for designers looking to enhance the operational safety and efficiency of their electronic products.