Compact macromodelling of operational amplifiers with equation defined devices

Brinson, Mike and Jahn, Stefan (2008) Compact macromodelling of operational amplifiers with equation defined devices. International Journal of Electronics, 96 (2). pp. 109-122. ISSN 0020-7217

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Abstract / Description

A new approach to the design of operational amplifier macromodels, based on a multi-terminal non-linear equation defined device, is presented. The concept of a compact macromodel is introduced and demonstrated by the design of a general purpose operational amplifier macromodel. The new macromodel models the principle operational amplifier characteristics, plus a number of features not normally found in previously published macromodels, including common-mode range, differential gain reduction during output voltage saturation, power-supply current sensing and temperature effects. The performance of the new macromodel has been tested using the Qucs circuit simulator and has been found to perform well in comparison to other published operational amplifier macromodels.

Item Type: Article
Uncontrolled Keywords: operational amplifier macromodel; equation defined device; circuit simulation
Subjects: 600 Technology > 620 Engineering & allied operations
Department: School of Computing and Digital Media
Depositing User: Mike Brinson
Date Deposited: 04 Nov 2019 10:19
Last Modified: 04 Nov 2019 10:19


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