Product Overview: ADM809SART - Analog Devices Inc.

The ADM809SART is a specialized microprocessor supervisory circuit from the reputable manufacturer, Analog Devices Inc. This compact component is designed to monitor the power supply voltage in microprocessor systems, providing a high degree of precision and reliability. It plays a crucial role in ensuring the proper functioning of electronic systems by resetting the microprocessor during power-up, power-down, and brown-out conditions.

Key Features

• Reset Output: The device generates a reset signal whenever the V<sub>CC supply voltage declines below a preset threshold, ensuring the microprocessor restarts cleanly during power-up or after voltage disturbances.
• Low Power Consumption: With its low power consumption, the ADM809SART is ideal for power-sensitive applications, extending battery life in portable devices.
• High Accuracy: This supervisory circuit offers a high level of voltage threshold accuracy, typically ±1.5%, which is critical for reliable operation.
• Reset Timeout: It features an adjustable reset timeout period, allowing designers to customize the reset signal duration to match specific system requirements.
• Small Footprint: Available in a compact SOT-23 package, the ADM809SART is suitable for space-constrained applications.

Applications

The ADM809SART is versatile and can be used across a wide range of applications, including:

• Computers and Servers
• Embedded Systems
• Portable/Battery-Powered Equipment
• Intelligent Instruments
• Automotive Systems

Technical Specifications

With an operating temperature range of -40°C to +85°C, the ADM809SART is designed to withstand harsh environments. The device has a threshold voltage typically set at 4.63V, but other voltage options are available to accommodate different system voltages. It is RoHS compliant, ensuring adherence to environmental standards.

In conclusion, the ADM809SART from Analog Devices Inc. is a robust and precise supervisory circuit that enhances the reliability of microprocessor systems by monitoring supply voltages and providing necessary resets. Its low power consumption and small size make it an excellent choice for a multitude of electronic applications.