Selecting the Best Model for a Simulation

Abstract

Several types of models are available for simulating the analog behavior of high-speed designs. Each model type has its strengths and weaknesses, which make it particularly well suited for certain simulation tasks-but not for others. IBIS achieves a good balance between simulation complexity and speed. Therefore, it is the best kind of model to use for the majority of PCB-level simulations. However, recent advances in semiconductor technology require that engineers also know about other types of models. This is especially true when dealing with high-speed digital design and high-frequency issues. When a simulation task requires another type of model, the available model can often be converted to the type needed.