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How do I adjust for AD9783 output offset?

Question asked by jhuber on Sep 12, 2012
Latest reply on Sep 13, 2012 by Tguy

I have an AD9783 with both positive and negative outputs terminated to ground through 50 Ohms. I see an offset on the positive side of -10mV and an offset on the negative side of 71mV. The datasheet suggests that the offset error will be +/-1mV at 20mA full-scale output current. Measuring the signal differentially shows an offset of -88mV. How do I fix the offset? What could be causing this issue?

 

Thanks,

jhuber

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