The IBIS model for the CBTW28DD14 uses the same input model (CBT_SWITCH_TERM) for all three switch groups. The c_comp value of 1.5pF is applied to each side of the series switch, resulting in a total die capacitance of 3.0pF. Is this correct or is the die capacitance being counted twice?
Original Attachment has been moved to: cbtw28dd14.ibs.zip