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DAC2904: Impedance

Part Number: DAC2904

Tool/software:

Hi Experts,

I would like to know if impedance matching is required for the DAC2904 digital input pin.

I would like to know how to determine the impedance size inside the chip if impedance matching is required for digital data input, and how to determine the input impedance size of the chip when outputting current.

Regards,

Marvin