aaron_do wrote on Jul 1st, 2008, 1:54am:No, just a single transistor.
In Current transistor model, model is composed of macromodel where intrinsic MOS and Verilog-A model sub block are combined.
Especially to express current dependent resistance and voltage dependent capacitance, etc., Verilog-A sub blocks are used.
So I think Verilog-A models are used in MOS model file.
Originally Verilog-A(AMS) is oriented to Transient Analysis.
So We have to take care of description scheme for small signal analysis.
Sometimes Verilog-A models can work in Transient Analsys but they give extraordinally results in small signal analysis. In this case we have to rewrite or reformulate Verilog-A model so that it can work for small signal analysis.