Layout driven macromodel of an operational amplifier

This paper describes the generation of the macromodel of an operational amplifier from the layout database. Unlike traditional schematic based macromodels, this makes it possible to capture all the complex parasitic effects in the layout and hence providing a more accurate representation of the database submitted to fabrication. Results show that such a macromodel provides a much faster simulation than the simulation of the netlist extracted from the layout and yet achieves close accuracy with the latter. Therefore, the proposed layout-driven macromodel allows the practical simulation of large layout databases of mixed-signal systems containing in a more time-efficient and accurate manner than can be presently achieved