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dc.contributor.advisorBrendan J. Whelan.en_US
dc.contributor.authorRayanakorn, Surapapen_US
dc.contributor.otherMassachusetts Institute of Technology. Dept. of Electrical Engineering and Computer Science.en_US
dc.date.accessioned2007-04-03T17:09:21Z
dc.date.available2007-04-03T17:09:21Z
dc.date.copyright2006en_US
dc.date.issued2006en_US
dc.identifier.urihttp://hdl.handle.net/1721.1/37079
dc.descriptionThesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2006.en_US
dc.descriptionIncludes bibliographical references (p. 149-151).en_US
dc.description.abstractThe operational amplifier is a fundamental building block for electronic devices and systems. The advancement of modern electronic technology has been setting more performance demand on the underlying integrated circuits including the operational amplifier. Reduction in power consumption and improvement in speed are some of the most important requirements. To address these concerns, this thesis presents a design of micropower Class AB operational amplifiers which has the ratio of gain bandwidth product to supply current higher than that of an existing IC. The design is in a 0.6pxm CMOS process. The input stage of the design has the folded-cascode architecture that allows the input common-mode range down to negative supply voltage. The Class AB output stage swings rail-to-rail and has the ratio of maximum current to quiescent current greater than 100. The bias cell of the operational amplifier is designed to consume only 6% of the total supply current. The thesis concludes the operational amplifier design with two frequency compensation options.en_US
dc.description.abstract(cont.) The one with simple Miller compensation has a unity gain frequency of 360kHz with 61.5 degrees of phase margin at 100pF load while consuming 20[mu]A supply current. The other with the hybrid of simple Miller compensation and cascode compensation offers an improved unity gain frequency of 590kHz at the same loading and power condition.en_US
dc.description.statementofresponsibilityby Surapap Rayanakorn.en_US
dc.format.extent151 p.en_US
dc.language.isoengen_US
dc.publisherMassachusetts Institute of Technologyen_US
dc.rightsM.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission.en_US
dc.rights.urihttp://dspace.mit.edu/handle/1721.1/7582
dc.subjectElectrical Engineering and Computer Science.en_US
dc.titleDesign of micropower operational amplifiersen_US
dc.typeThesisen_US
dc.description.degreeM.Eng.en_US
dc.contributor.departmentMassachusetts Institute of Technology. Dept. of Electrical Engineering and Computer Science.en_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
dc.identifier.oclc83282268en_US


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