MOS-only circuit design automation

This paper presents an approach to automate MOS-Only circuit design under the polynomial regression and surface fitting. The proposed scheme incorporates a unified model, which enables to improve simulation accuracy in standard SPICE and Cadence SPECTRE simulators during the MOS-Only designs. Furthermore, a piecewise polynomial regressive model of transconductance (gm) of the MOS transistors is presented in terms of VDS, channel width (W) and channel length (L) to increase automation efficiency. Exemplary results are given at high frequency operation to validate our model in both Cadence Spectre and LT-Spice as well.