FFT to analyze an A/D converter

Hello, I've designed an A/D converter and now want to analyze it's frequency
domain performance (i.e. SNR). I don't know exactly how to do this, so if
there are any hints, that would be good!

I read something about taking an FFT of the digital output stream. Is this
even something that Cadence does? Or do you have to somehow port the
simulation results to something like Matlab.

I'm pretty lost here...

 

Is it a sigma-delta ?

 

Hello,

To characterize my DAC, I have performed mixed simulation (VHDL-AMS,
Transistor level) with AdvanceMS. I have described an ideal ADC in
VHDL-AMS connected to an ideal analog generator and to the input of my
DAC. (it requires to use the Eldo models of the transistor so that they
can simulated in AdvanceMS)
Then I ve performed the FFT of my analog output by using the dedicated
function provided by the EZ Wave calculator. One can then appreciate
the noise and the distorison levels. Finally the SNR function should be
used to compute the SNR (!), and then the resolution can be computed by
hand.

Jerry,