[IBIS-Users] Complementary Differential Input Buffer modeling help

Hello,

I am trying to model a complementary differential input buffer (full differential as defined in the ibis spec), and the IBIS cookbook suggests I use the Series Mosfet keyword (I guess the device doesn't actually have to be a mos to use this keyword) since my 3D plots contain non-linearity's.

The problems I am having are:

1) I am not quite sure how to format the IBIS file to use this (the example isn't very clear).

2) With my Vpos vs. Vneg vs. i curves, do I still need to remove the common mode and place them in the pullup/down tables when I use Series mosfet, or is that only for when you use Series R.

Also, if anyone has a model of this type that can be disclosed, it would be greatly appreciated.

Best Regards,
Eric

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