Why is table-based model evaluation not working in T-Spice v13?
We removed table based model evaluation from T-Spice in v13. Table based model evaluation served two functions: First it was used to speed up simulation with less accuracy and second to model devices that you have measured data for but not a real model. Starting v12.x, Table-based model evaluation for faster simulation was not speeding up simulation but actually making simulation slower. From our tests, table-based model evaluations were actually the same or slower than direct model evaluation. Thus defeating the purpose of this feature. The second reason to use Table based models is for modeling devices with measured data instead of a real model. This can be easily achieved using Verilog-A capability in T-Spice. Actually, if you want to do device modeling Verilog-A is what you really should be using. Also, Verilog-A would be helpful for users who want to do behavioral modeling of their circuits.
