A 1.1uW 2.1uVrms Input Noise Chopper Amplifier for Biomedical Applications

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dc.contributor.advisorAllstot, David Jen_US
dc.contributor.authorMandic, Christopher Johnen_US
dc.date.accessioned2013-02-25T18:02:47Z
dc.date.available2013-02-25T18:02:47Z
dc.date.issued2013-02-25
dc.date.submitted2012en_US
dc.descriptionThesis (Master's)--University of Washington, 2012en_US
dc.description.abstractMicropower amplifiers for neural sensing and other biosignals are becoming increasingly relevant in cutting edge biomedical research. This thesis presents a complete 1.1uW two stage subthreshold low-noise amplifier configured for measuring local field potentials (brain signals used in neuroprosthetics). The first stage chopper amplifier is a 700nW folded cascode topology with three low-impedance node mixers that allow different sections of the amplifier to be chopped at different frequencies for lower noise levels. With a simulated NEF (noise efficiency factor) of 3.28 the first stage amplifier has the potential for incorporating many recording channels on an implanted IC; making efficient use of both silicon area and battery power.en_US
dc.embargo.termsNo embargoen_US
dc.format.mimetypeapplication/pdfen_US
dc.identifier.otherMandic_washington_0250O_10933.pdfen_US
dc.identifier.urihttp://hdl.handle.net/1773/22034
dc.language.isoen_USen_US
dc.rightsCopyright is held by the individual authors.en_US
dc.subjectChopper amplifier; Implantable; Low noise; Low power; Neural recording; Subthresholden_US
dc.subject.otherElectrical engineeringen_US
dc.subject.otherNeurosciencesen_US
dc.subject.otherElectrical engineeringen_US
dc.titleA 1.1uW 2.1uVrms Input Noise Chopper Amplifier for Biomedical Applicationsen_US
dc.typeThesisen_US

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