A Novel CMOS Operational Amplifier with two Differential Input Stages

Conference: ISTET 2009 - VXV International Symposium on Theoretical Engineering
06/22/2009 - 06/24/2009 at Lübeck, Germany

Proceedings: ISTET 2009

Pages: 3Language: englishTyp: PDF

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Lipka, Björn; Kleine, Ulrich (Otto-von-Guericke Universität Magdeburg)
Scheytt, Johann-Christoph; Schmalz, Klaus (IHP GmbH)

A novel CMOS operational amplifier with two differential stages has been fabricated and has been measured successfully. A nested Miller compensation is used to ensure a stable operation. The layout has been created automatically by using the ALADIN tool. An appropriate smallsignal model is depicted for the amplifier and the measurement results are presented.