spice
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Posted by ivan on March 28, 2007, 8:42 am
Please log in for more thread options [sorry for the x post] hi all, what is a good free spice program? possibly with a large opAmp library.... thanks Ivan | |||||||||||||
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Posted by on March 28, 2007, 8:55 am
Please log in for more thread options LTSpice from Linear Technology (http://www.linear.com/) is hard to beat. I think they actually call it SwitcherCad 3. The built-in op amp library is restricted to parts that Linear Technology makes or second sources, but that is a pretty comprehensive selection, and it is easy enough to pick up Spice models for other manufacturers op amps from the manufacturer's web-site. Finding out where to put these models so that LTSpice can find them is a bit trickier, but you can ask for advice here or on sci.electronics.cad. -- Bill Sloman, Nijmegen | |||||||||||||
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Posted by Paul Burke on March 28, 2007, 9:05 am
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bill.sloman@ieee.org wrote: >
> Finding out > where to put these models so that LTSpice can find them is a bit > trickier, but you can ask for advice here or on sci.electronics.cad. > I just put them in lib\sub, is that wrong? | |||||||||||||
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Posted by Helmut Sennewald on March 28, 2007, 3:30 pm
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> bill.sloman@ieee.org wrote:
>>
>> Finding out >> where to put these models so that LTSpice can find them is a bit >> trickier, but you can ask for advice here or on sci.electronics.cad. >> >
> I just put them in lib\sub, is that wrong? Hello Paul, It's ok in principle. It's the first place where LTspice looks for a model file if you don't specify the full path. I prefer to save models and symbols always into the same directory where I have saved my schematic. If I need a model in five different designs, I save it into everey design directory. This makes it very easy to archive a design. I just zip all the files in the design directory, except the ".raw"-file of course. Best regards, Helmut | |||||||||||||
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Posted by ivan on March 29, 2007, 8:26 am
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> > [sorry for the x post]
> > > > hi all, > > > > what is a good free spice program? > > possibly with a large opAmp library.... >
> LTSpice from Linear Technology (http://www.linear.com/) is hard to > beat. I think they actually call it SwitcherCad 3. > > The built-in op amp library is restricted to parts that Linear > Technology makes or second sources, but that is a pretty comprehensive > selection, and it is easy enough to pick up Spice models for other > manufacturers op amps from the manufacturer's web-site. Finding out > where to put these models so that LTSpice can find them is a bit > trickier, but you can ask for advice here or on sci.electronics.cad. > > -- > Bill Sloman, Nijmegen > how do you rotate/mirror parts in LTSpice? thanks again ivan | |||||||||||||
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>
> hi all,
>
> what is a good free spice program?
> possibly with a large opAmp library....