Pspice : need to have generic DAC and ADC models

[houly]

hello
I would want ot know if it is possible to have a generic DAC (and ADC) in pspice (I use Orcad suite for simulation) ? I know that Simetrix permit to setup custom model, does pspice could do it too ?

thanks.

 

[keith1200rs]

I cannot check at the moment, but if you have SIMetrix, generate an ADC and look at the netlist. If it looks like a Spice subcircuit you could cut & paste it into Pspice.

A DAC wouldn't be too tricky - an R2R ladder and perfect buffer.

Keith

 

[houly]

I can't do this. The ADC of Simetrix is a GUI which its model is not accessible.

 

[keith1200rs]

If you run a simulation with the DAC or ADC in SIMetrix and then look at either the 'design.net' file or the list/output file you should be able to see what has been used in the simulation. It may be a macro using SIMetrix syntax, or it may be a Spice subcircuit - I am not sure.

Keith

Added after 30 minutes:

I have managed to do a quick check and it calls up models in the bridges.lb library, but I am not sure it helps much.

Keith

 

[keith1200rs]

Does Pspice support Xspice digital models? bridges.lb is the link between Xspice and Spice. If Pspice supports Xspice then the model in bridges.lb may also work.

Keith

 

[GeniA]

Does anyone know/have a multi-bit ADC or DAC model in Spice language. I want to use it in a design in SMASH