Freeware tool for converting SPICE-to-IBIS

[Pavel_47]

Hello,
Does anyone know of a free tool to convert SPICE to IBIS.
I found one, but it was developed 16 years ago and is no longer supported. While trying to use it, I encountered problems with Java.
Another option is T2B from Cadence Sigrity suite, but it isn't available as separate tool.
Thanks.

[qdrives]

What about using a bunch of .meas commands and using those results to build the IBIS model?

[robertferanec]

Try to ask the chip manufacturer, if they don't have the model and if you really need to simulate it, I would try to find a similar component which would have model. Even if you convert it, are you going to fully trust it? I believe these two models are created based on different approaches, I am not sure how accurate the conversion can be.

I know it doesn't directly answer your questions, but maybe it can help.

[Pavel_47]

The tool I mentioned allows you to create IBIS models for different components, such as MOSFETs for which, unlike BJTs, there is no default model in Altium.
Asking the chipmaker is another issue. I tried to get IBIS from Realtek for purely digital ICs, but failed: Realtek does not supply IBIS for its ICs.