A.D.J
Junior Member
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Posts: 14
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Hi, everyone. The fully differential opamp is used in MDAC of a pipelined ADC. I want to plot the FFT spectrum to check its SNDR.
For single-ended output, connect the output to negative input to build up the unity gain buffer. And then provide the sinewave to the positive input. Then we can plot the FFT of the output.
But for the differential output, how to plot FFT?
Thank you.
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