Wave Digital Filter Modeling of Circuits with Operational Amplifiers

Kurt James Werner, W. Ross Dunkel, Maximilian Rest, Michael Jørgen Olsen, Julius O. Smith

Research output: Chapter in Book/Report/Conference proceedingConference contribution

23 Citations (Scopus)
309 Downloads (Pure)


We extend the Wave Digital Filter (WDF) approach to simulate reference circuits that involve operational amplifiers (op-amps). We handle both nullor-based ideal op-amp models and controlled-source-based linear op-amp macromodels in circuits with arbitrary topologies using recent derivations for complicated scattering matrices. The presented methods greatly increase the class of appropriate circuits for virtual analog modeling, and readily extend to circuits with any number of op-amps. Although op-amps are essential to many circuits and deviations from ideal can be important, previous WDF research applies only to the limited case of circuits with ideal op-amps, in differential amplifier topology, with no global feedback.
Original languageEnglish
Title of host publicationProceedings of the 2016 24th Signal Processing Conference (EUSIPCO)
Place of PublicationBudapest, Hungary
Publisher IEEE
Number of pages5
Publication statusPublished - 01 Dec 2016
Externally publishedYes
Event2016 European Signal Processing Conference (EUSIPCO 2016) - Budapest, Hungary
Duration: 29 Aug 201602 Sep 2016


Conference2016 European Signal Processing Conference (EUSIPCO 2016)

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