Is anybody know ASIDES for sigma delta modulator design

[chungming]

sigma delta sdopt fridge

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~~~!!!!!!!!

 

[sixth]

asides sigma

Maybe the most effiency method is to ask the author directly for a copy of his program.