Tim said:
I know that most SPICE models you do get are behavioral, and that it's
work to get a model that's accurate enough for circuit design yet doesn't
shove hair crosswise up the butts of the Defenders of the Intellectual
Property.
So I understand the impulse not to do SPICE models at all.
But it still leaves me severely disinclined to design in products, and it
leaves me favorably inclined to folks that _do_ publish SPICE models,
even when I know their models are 'just' behavioral.
FET models are usually not behavioral. There isn't much IP value in them
either. If someone wanted to disect a FET in order to copy it then SPICE
won't help them much. They'd have to send it to a materials science lab
for slicing and tear-down, along with a big fat check. So why they don't
release those SPICE models is something I really don't understand. But
oh well, what's the old sales mantra? If you don't take care of your
customer, someone else will
And it's not that they don't give out info. They usually furnish models
for high falutin RF simulators that cost as much as a Cadillac. Many
folks don't have that, and it's often not all that useful for pulse apps
anyhow. S-parameters aren't all that helpful there.
