A methodical approach for macromodeling of analog circuits

Accurate and reliable models of analog and mixed-signal ICs are essential for simulation of board-level designs. The modeling approach outlined in this paper presents a methodical way of generating accurate analog models. It relies heavily on the build-out techniques of modeling, and allows the designer to simplify the modeling process by subdividing a circuit function into a hierarchy of function modules, where each function module provides an accurate and independent control of one or two model parameters. The modular nature of the resulting model allows it to be useful as a "template" for a broad class of similar circuits.