X9221AUST2

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The X9221AUST2 is part of a range of Data Acquisition products from Exar. A digital potentiometer is an electronic control device that allows adjustment of an electrical resistance for a wide variety of tasks. This particular device is a low-voltage, low power, precision, medium-speed, digitally controlled resistor.

When used in data acquisition applications, the X9221AUST2 provides a number of advantages. As a digital potentiometer, the part offers precision and repeatability, making it ideal for highly regulated electro-mechanical or electrical actuation tasks. This is especially true when multiple devices are used in combination to achieve a desired outcome.

The X9221AUST2 is also useful in controlling gain or attenuation of signals. Some of the key performance parameters of the X9221AUST2 include its wide supply voltage range (2.7V-5.5V) and its low quiescent current (1.3μA). In addition, the device is rated to operate at temperatures up to 105°C.

The device features non-volatile memory, which allows it to maintain the current wiper position if power is lost. It also features a write protect pin. When this pin is held high, the device is completely locked and does not allow any changes to be made.

The X9221AUST2 is used in a variety of applications. It is commonly used in sensor signal conditioning, automotive applications, and for fine-tuning amplifier gain settings. The device provides a reliable means of adjusting resistance and is easy to use with only two control pins.

The working principle of the X9221AUST2 is based on the interaction between a DAC and digital potentiometers. The device has an SPI interface, which can be used to send commands to the device. The DAC then drives the potentiometer, allowing the resistance to be set in steps.

The X9221AUST2 is a versatile and reliable device that can be used in a range of data acquisition applications. Its precise and repeatable performance make it ideal for precise electro-mechanical settings, and its low power requirements make it perfect for mobile and battery-powered devices. In addition, the device’s memory and write protect pin help to ensure the accuracy and security of the settings. All in all, the X9221AUST2 is an excellent choice for data acquisition and digital potentiometer applications.

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