X9409WV24Z

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Data Acquisition – Digital Potentiometers

Digital potentiometers are an essential component in any data acquisition system, whether used for calibration, testing, feedback, or analog signal chain control. The X9409WV24Z is an example of digital potentiometers, which is used in a variety of different applications and is based on a unique working principle.

Application Field

The X9409WV24Z from Texas Instruments is a low-power, 10-bit, 8-channel, voltage-input digital potentiometer. The device is ideal for applications where multiple resistors are needed for different dynamic ranges and for systems where size and power are important considerations. It can be used in a broad range of applications including AC-DC power conversion systems, imaging systems, motor control systems, motor drivers, and automotive systems.

The X9409WV24Z has two terminals for each channel, one for input and one for output. This allows for an accurate representation of resistance values over a wide range, up to 10K ohms, and a wide variety of operating voltages, between 3.1 V and 18 V. This makes it suitable for low voltage and high voltage applications, as well as multi-voltage applications.

The X9409WV24Z is available in through-hole and surface-mount designs, providing flexible mounting options for designers. It is also available in a small package size, making it suitable for high-density design.

Working Principle

The X9409WV24Z is based on the switched-resistor network topology and operates with a single supply voltage operation at 4.5 V to 18 V. The device performs operation by connecting variable resistor elements in the on/off state: each bit of the device is connected to two variable resistance elements; the on/off signals determine which resistor elements to connect. The end result is a varying resistance value between the input and output terminals.

Since it is based on a digital switching process, the X9409WV24Z offers excellent accuracy and fast operation when setting the resistance value. The device also offers excellent thermal stability, low offset voltage, and programmable output resistance values. It also features built-in diagnostics to ensure the reliability and accuracy of the device.

The X9409WV24Z is an excellent choice for applications requiring an accurate, low-power digital potentiometer. Its fast and reliable performance, thermal stability, and a range of package sizes make it a great choice for data acquisition systems.

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