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AD9117 output voltage arrangement

Question asked by SGh on Feb 1, 2016
Latest reply on Apr 26, 2016 by larrywelchusa

On my design, two differential signals: one from a Demodulator (ADL5380) and the other from a DAC (AD9117) go to a differential amplifier (ADA4930). So that the output of both Demod and DAC should have the same common mode level and swing. The desired common-mode output is 1.2 V with the swing of 1 Vp-p.

What is the best way to get the above spec? Do I have to use the internal common mode resistors or the external resistors?

What output current should I use?

The DAC AVDD will be tied to 3.3 V.


Thanks in advance

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