Hi~~~
I looked the book & paper "Top-Down Design of sigma delta Modulator" written by Fernando Medeiro.
They introduce Tools ASIDES , SDOPT & FRIDGE for simulate SDM ,it seems very accuracy.
Is anybody know that tools?
Is it really very useful? I didn't see any people use that except they.

And i very wonder how should we choose the opa's specification DC gain ,slew rate......(if we use switched-cap) ?
Is just calculated by hand, or use verilog A to model ?
I want know a good company how to do this...
Thanks~~~!!!!!!!!

thanks~~boa
I think Maloberti & Medeiro they do the same thing.

And you said
"Actually all equations for modelling non-idealities are in the book, so it's pretty straight forward to implement your own SDM model in Matlab or Verilog-A"
did you do this ? Is it accuracy?
thanks~~!!