English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

An analytical-knowledge-based statistical method is developed to derive macromodels for the highly nonlinear A. C. response functions of CMOS Op-amp circuits. Simple circuit analysis is used to motivate the use of logarithmic transformations. By this tmnsformation, linear models are fitted over a large domain of the independent variables (typically, transistor widths) with very few circuit simulations. From circuit analysis it is deduced that poles and zeroes are appropw”ate for empirical modeling instead of directly modeling the response functions like Unity Gain Frequency or Phase Ma@n. We have demonstrated the usefulness of the proposed method by using itto model the tmnsferfunction of a two-stage compensated CMOS Op-amp circuit. The model is compared with SPICE3 simulations and shown to have excellent predictive capability, with a speed-up of more than 500.

Macromodeling of the A.C. characteristics of CMOS Op-amps