Track 3 Afternoon
Operational Amplifier Design – Synthesis vs Appear and Analyze
Abstract
This tutorial will focus on the synthesis of operational amplifiers as an alternative to the more common approach of “appear and analyze”. Operational amplifiers will be synthesized from simple basic circuits by exploiting symmetry and reflection properties of linear and nonlinear circuits. With this approach, some of the most widely used amplifier structures will emerge. Many of the basic properties of more complicated operational amplifiers will be obtained by inspection thus circumventing tedious analytical calculations. Strategies for introducing new structures for obtaining desired properties will be explored. The concept of design space identification will be emphasized along with identifying the actual degrees of freedom available in the design. A systematic approach for using the degrees of freedom to design practical operational amplifiers will be discussed.
Speaker
Randall Geiger
Randy Geiger received the BS degree in electrical engineering and the MS degree in mathematics from the University of Nebraska and the PhD degree in electrical engineering from Colorado State University. From 1977 to 1990 he was a faculty member in the Electrical Engineering Department at Texas A&M University and since 1991 he has been a member of the faculty in the Department of Electrical and Computer Engineering at Iowa State University. He is a past president of the IEEE Circuits and Systems Society (CAS), a past chair of the Transactions Committee of the IEEE Periodicals Council, and a past member of the IEEE Publications Board. He was the recipient of the IEEE Millennium Medal and the IEEE CAS Society Golden Jubilee Award, and is a Fellow of the IEEE. Recently he served as General Co-Chair of ISCAS 2022 in Austin TX and MWSCAS 2024 in Springfield Mass.
