On Wed, 2011-07-20 at 09:24 -0700, Denny Esterline wrote:
> I don't know that I'd call it a "bug", I think it's more of a case of "In
> theory, theory and practice are the same. In practice, they are not."
> I'd think that in a real circuit, stray parasitic capacitance would be
> enough to calm this down. It's a reminder that the circuit board is more
> than just a mounting device.

True, but that's not what I'm referring to.

SPICE models have bugs, SPICE engines themselves have bugs.

While much more often then not the issues you see are due to either not
properly understanding the models (which I believe is the case this
time), or not properly modelling the circuit (resulting in failed sims),
there are times the problems are due to the tools or models themselves.

I've seen SPICE models that were just wrong, I've seen ones with VERY
border case type issues.

TTYL

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