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TINA/Spice/CD54AC541: Conversion from IBIS to TINA

Stefan Hilbert
Prodigy 40 points
Part Number: CD54AC541
Other Parts Discussed in Thread: TINA-TI, CD54HC541,

Tool/software: TINA-TI or Spice Models

Hi,

Is there a way to convert an IBIS model (IBIS Version 4.0) to SPICE model of CD54AC541 or CD54HC541 for behavior simulation with TINA?

Or there are existing models for TINA?

Thanks!

  • 0
    TI__Mastermind 33190 points

    Stefan,

    There is no method for converting an IBIS model to a TINA model, or vice-versa.

    There is no TINA model for this device. You can request a model through your local TI representative or through support@ti.com

    Regards,
    John

  • 0 in reply to John Miller - Sensing
    Prodigy 40 points
    Hello John,
    ok, thanks for your fast answer.
    Conversion would work in that way - at first from IBIS to SPICE and from SPICE to TINA.
    But that's a great effort ...
    Thanks,
    Stefan
  • 0 in reply to Stefan Hilbert
    Prodigy 130 points

    Technically, some IBIS models can be used as input and output stages in modeling of components.That is important in mixed signal circuits, where loads, thresholds and slopes matter.

    Between those recorded stage responses, you should recreate logic on your own. Some conversion is available in Microcap, there are other converters. But no simple solution.

    There's totally no manual available, except a pair of simplified presentations. So, I could not figure out the process itself. Seems, like all IC developers have their inhouse models for their own needs, and don't care about customers.

    "and from SPICE to TINA"

    TINA is SPICE. Technically, if you have something PSPICE/SPICE3 compatible, you don't have to care about syntax differences much. Encrypted models, and models based on specific proprietary functions are the pain in the//// Like you can import to HSpice, but almost no HSpice model can be exported. It uses too much "original" functions and syntax. With PSpice it is easier. TI's TINA and PSpice models rely too much on TINA ability to cut corners when convergence is awful; being imported to LTspice half of TI models fail with convergence or other errors, because LT's solver is too meticulous.