[sdiy] LTSpice for large circuits?

[Jay Schwichtenberg]

I did a PWM and mux circuit with 8 op-amps, 2 comparators, 3 transistors and
2 fets.

To run a simulation and get 3 waveforms out of it it took about 10-15
minutes. This is on a P4, 3 GHz., 2 gigs of ram.

I don't think doing a vocoder in full would be practical (don't know about
the component limits). Might be pretty fast when we get 8 core, quad
processor systems if the SW is written for threading.

Good luck.
Jay S.

> -----Original Message-----
> From: synth-diy-bounces at dropmix.xs4all.nl
> [mailto:synth-diy-bounces at dropmix.xs4all.nl]On Behalf Of JH.
> Sent: Thursday, April 01, 2010 1:30 AM
> To: synth-diy at dropmix.xs4all.nl
> Subject: [sdiy] LTSpice for large circuits?
>
>
> Hi,
>
> seems I must say Goodbye to PSpice ...
> I have an old unsupported 8.0 Version that doesn't seem to
> recognize the security plug anymore (tried a lot of things to fix the
> problem, and finally give up).
>
> I'm looking for an alternative. LTSpice seems to be popular
> because it's free. But before I start to learn user interface of that
> program, I'd like to know if LTSpice will be good enough for
> really huge circuits (like, a vocoder with 100 opamps) - or are there
> any limitations?
>
> I'm also looking for recommendations for other Simulation programs.
> Doesn't have to be freeware, but I don't want to spend a big
> amount of money - smething in the 100 ... 200 EUR range would be nice.
> Comfortable user interface is 1st priority, because I'm going to
> use this a *lot*.
>
> Thanks in advance,
>
> JH.
>
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