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Basic SPICE info needed

Discussion in 'Electronic Design' started by [email protected], Mar 19, 2007.

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  1. Guest

    Good Afternoon,
    I just had a few general questions about SPICE. I am curious if
    parameters for one SPICE program might be named differently in
    another. I'd also be interested in knowing whether a "converter"
    exists for translating one version to another (ex. PSPICE to Xspice
    and vice versa).

    Best regards,
  2. Tom Bruhns

    Tom Bruhns Guest

    Yes, Fahad, unfortunately there are differences. The differences tend
    to be largest between programs based on SPICE2 and those based on
    SPICE3, but even among those based on a single version there are
    differences. Some of the "value added" to justify charging money for
    SPICE simulators is in added capability, and if a simulation takes
    advantage of that added capability, it's almost certainly not going to
    be the same in some other version of SPICE.

    A lot of models such as op amp behavioral models supplied by op amp
    manufacturers use syntax specific to SPICE2, and require conversion to
    work properly in SPICE3 based programs. I once tried a program that
    claimed to do the conversion, but was disappointed that it didn't get
    everything right. Maybe by now there exists something more reliable.
    I'd rather just to the conversion "by hand" than try to straighten out
    something that a converter got wrong!

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