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AD9739 Differential output

Question asked by rastiffler on May 3, 2012
Latest reply on Jun 1, 2012 by danf



I want to use the AD9739 differential current outputs to drive a 100 ohm differential ac-coupled output.  The datasheet talks about converting the differential output to single ended using a balun and 90 ohm resistors to ground on each output to provide a 25 ohm impedance (50 ohm differential) on each output.  What is the best way to connect the outputs to get a 100 ohm differential output given the internal 70 ohm impedance?