X9400 - Quad Digitally Potentiometer
The X9400 integrates four digitally controlled potentiometers (XDCPs) on a monolithic CMOS integrated circuit.
The digitally controlled potentiometer is implemented using 63 resistive elements in a series array.
Between each element are tap points connected to the wiper terminal through switches.
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X9400 Features
* Four potentiometers per package
* 64 resistor taps
* SPI serial interface for write, read, and transfer operations of the potentiometer
* Wiper resistance, 40 typical at 5V.
* Four non-volatile data registers for each potentiometer
* Non-vol