Re: gEDA-user: TwoStageAmp example

[John Doty <jpd@xxxxxxxxxxxxx>]

On Apr 2, 2007, at 11:19 AM, al davis wrote:

> The current snapshot has plugins with the complete set of BSIM
> models, from the oldest up to the new BSIM460 that hasn't made
> it to most commercial simulators yet.  There is also
> a "spice3f5" set, and a "ngspice17" set.  You attach the ones
> you want, and the rest don't get in the way.

Sounds wonderful. Is it sufficiently compatible with SPICE that I can  
feed it an HSPICE netlist to describe the circuit itself? I don't  
care about commanding the simulation in some other language, but I've  
been working with a VLSI layout contractor that uses HSPICE netlists  
as an interchange format and a fab house that distributes BSIM  
parameters in HSIPCE format. I generate HSPICE netlists from the  
schematic, check them in simulation, and submit them to the  
contractor. I get back huge, flat "parameter extraction" HSPICE  
netlists for more simulation. I've been using ngspice with a  
customized spicepp.pl successfully, but there are issues. The bigger  
transient simulations bring ngspice to its knees without careful  
tuning, and noise simulations produce nonsense.

John Doty              Noqsi Aerospace, Ltd.
jpd@xxxxxxxxx




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