X9429WV14IZ-2.7T1 Integrated Circuits (ICs)

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Data Acquisition - Digital Potentiometers can be categorized by their uses such as voltage dividers, circuitry dividers and current dividers. The X9429WV14IZ-2.7T1 digital potentiometer is an integrated, non-volatile, digitally controlled linear and rotary position potentiometer. It is an analog, CMOS, digital-to-analog device in a 3-terminal package.

The X9429WV14IZ-2.7T1 digital potentiometer’s primary application field is voltage ratio control. Its Control Voltage (VC) is used to establish a linear voltage divider with wiper resistance controlled by the external user. The typical applications are battery fuel indicators, audio level control and analog output circuits of microcontroller-based systems. The IC operates from a single 3.3V power supply and features a 100kHz maximum clock rate, which makes it suitable for high-speed data acquisition applications. It has a low power-consumption and low voltage operation, enabling its use in portable systems.

The X9429WV14IZ-2.7T1 digital potentiometer’s working principle is based on a resistor array consisting of 150TΩ/TΩ(TΩresistors connected between the two voltage reference pins, one connected to the supply voltage, VDD, and the other to GND. The wiper pin is connected to the Control Voltage (VC) and has the resistance of the selected TΩ resistor. It works in conjunction with the internal digital-to-analog circuit and digital decoder.

The circuit has an internal digital-to-analog converter that converts the analog voltages into digital signals. These signals are then processed by the digital decoder, which produces a preset value corresponding to the desired wiper resistance. The preset value is then used to adjust the voltage at the wiper pin, thus allowing for precise control. The resistance of the selected TΩ resistor depends on the value of the Control Voltage (VC).

In conclusion, the X9429WV14IZ-2.7T1 digital potentiometer is a high-performance, low-power, and low-voltage integrated device designed for applications in discrete analog circuitry. Its primary application field is Voltage Ratio Control and its primary benefit is its ability to provide precise, reliable and repeatable adjustments with a single voltage reference. Its main feature is its low-power consumption, which makes it suitable for use in portable systems. Its working principle is based on a resistor array and digital-to-analog conversion, and its digital decoder produces a preset value corresponding to the desired wiper resistance.

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