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dc.contributor.authorIbrahim, Mark
dc.date.accessioned2014-01-20 20:48:02 (GMT)
dc.date.available2015-05-02 05:30:36 (GMT)
dc.date.issued2014-01-20
dc.date.submitted2014
dc.identifier.urihttp://hdl.handle.net/10012/8147
dc.description.abstractA 1-GΩ CMOS transimpedance amplifier (TIA) suitable for processing sub-nA-level currents in electrochemical biosensor signal-acquisition circuits is presented. Use of a two-stage active transconductor provides resistive feedback in place of a large-area linear resistor. The TIA feedback loop is engineered to suppress output offset caused by DC input leakage currents of ±0.9 nA. A mechanism to tune the low-frequency cutoff of the TIA from 0.7 Hz to 500 Hz is implemented which permits operation under variable environmental conditions. Simulated and experimental results from a custom TIA fabricated in a 3.3-V 0.35-µm CMOS process are presented.en
dc.language.isoenen
dc.publisherUniversity of Waterlooen
dc.subjectbiosensoren
dc.subjecttransimpedance amplifieren
dc.titleCMOS Transimpedance Amplifier for Biosensor Signal Acquisitionen
dc.typeMaster Thesisen
dc.pendingfalse
dc.subject.programElectrical and Computer Engineeringen
dc.description.embargoterms1 yearen
uws-etd.degree.departmentElectrical and Computer Engineeringen
uws-etd.degreeMaster of Applied Scienceen
uws.typeOfResourceTexten
uws.peerReviewStatusUnrevieweden
uws.scholarLevelGraduateen


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