Product Overview: ADM809-5SARTZ-REEL from Analog Devices Inc.

The ADM809-5SARTZ-REEL is a high-precision supervisory circuit designed by Analog Devices Inc., a leading company in the semiconductor industry. This component is part of a series of microprocessor (μP) supervisory circuits that are used to monitor the power supply voltage in μP and digital systems. It provides a cost-effective way to ensure reliable system operation by resetting the μP during power-up, power-down, and brown-out conditions.

This specific model, the ADM809-5SARTZ, comes in a 3-pin SOT-23 package and is available on a 7-inch reel, making it suitable for automated surface-mount assembly processes. The device operates at a nominal threshold voltage of 4.63 volts, which makes it ideal for 5V systems. It ensures that the μP resets properly during power-up, thereby preventing code execution errors from occurring before the system power supply has stabilized.

The ADM809-5SARTZ-REEL features a reset output which remains asserted for a minimum of 140 ms after Vcc has risen above the reset threshold level. This ensures that the system has sufficient time to stabilize before the processor begins operation. The device also includes a watchdog timer that can be used to monitor the software execution integrity by resetting the μP if it fails to strobe within a preset time frame.

Moreover, the ADM809-5SARTZ-REEL offers low power consumption, typically 17 μA, which is critical for power-sensitive applications. The device is also designed to remain fully operational over the temperature range of -40°C to +85°C, ensuring reliable operation in a wide range of environments.

With its precision voltage monitoring and low power consumption, the ADM809-5SARTZ-REEL from Analog Devices Inc. is an excellent choice for system designers looking to enhance the reliability and performance of their digital systems. Its compact size, ease of integration, and robust feature set make it a versatile component for a variety of applications, including computers, controllers, intelligent instruments, and critical μP power monitoring tasks.