I have modeled acquisition and conversion of SAR ADC in LTSpice, Spec which i used is https://www.analog.com/media/en/technical-documentation/data-sheets/237820fb.pdf I wanted to measure offset error, gain error, INL , DNL performance specs. Unfortunately when i observed when I give input as ramp signal since there is acq and conv cycles. I miss some of the data same in sine input. During conversion there is no acquisition that what i have assumed and model. I have attached screenshot of output. Here I have give ramp signal to measure quantitation error and V(005) is output after DAC from ADC I am subtracting it V(out)-V(in). Is this the right way? How to procure transfer function test case in SAR ADC? Test and measure offset error, gain error, INL , DNL performance specs in SPICE?
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