Delta sigma ADC, DT/CT equivalent

[jowong1]

I have a q about the equivalence between DT and CT DSADC. I know in MATLAB, there is a function u can find H(s) from H(z) if and only if u use NRZ DAC. I am wondering how I can find H(s) from H(z) if I use some other DAC like RZ, exponential, etc...

Thanks