The AD8402AR1 is an IC (integrated circuit) component manufactured by Analog Devices. It is a dual-channel, nonvolatile digital potentiometer that offers a range of features making it useful in various applications. This component is designed to replace mechanical potentiometers, providing enhanced reliability and flexibility.
One of the key features of the AD8402AR1 is its dual-channel configuration. It consists of two individual potentiometers fabricated on a single chip. Each potentiometer contains 256 resistive elements divided into 16 sections, providing a high level of resolution.
The AD8402AR1 is a nonvolatile digital potentiometer, meaning it retains the resistance settings even when powered off. This feature eliminates the need for recalibration every time power is applied. It is achieved using EEPROM (electrically erasable programmable read-only memory) technology, which allows the potentiometer settings to be stored and recalled as needed.
To control the AD8402AR1, a serial interface is provided, allowing communication with a microcontroller or other external devices. This interface supports both SPI (Serial Peripheral Interface) and I²C (Inter-Integrated Circuit) protocols, providing flexibility for different system requirements.
The AD8402AR1 offers a wide range of resistance values, allowing it to fit various applications. The resistance range provided by each potentiometer is programmable, with options to set the upper and lower limits. This flexibility allows for customization to specific requirements
