An Ultra-Low Noise, Fully Differential Active Reset CMOS Imager with Transistor Based Column Parallel Common Mode Feedback for Spectrally Constructed Background Illumination Rejection

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atmire.migration.oldid4448
dc.contributor.advisorYadid-Pecht, Orly
dc.contributor.authorShahin, Saharnaz
dc.date.accessioned2016-05-17T17:49:12Z
dc.date.available2016-05-17T17:49:12Z
dc.date.issued2016
dc.date.submitted2016en
dc.description.abstractAn ultra-low noise, ultra-sensitive fully differential CMOS imager for background illumination rejection is presented. Fabricated by TSMC35 technology, the pixel is able to detect very low light signals and discern them from backgrounds exceeding their intensity. Measurements indicate a common mode rejection ratio (81.6 dB), very high sensitivity (200 V/Lux.s), and noise floor of 4 electrons. Obtained figures agree with theoretical assessments and simulations, proving the pixel to be a basis of a sensing element in ultra-sensitive continuous time or gated applications. As a second contribution, to stabilize the DC output, a transistor based common mode feedback (CMFB) is added (AMSp35 technology). By moving the load and CMFB to column periphery, number of transistors per pixel have reduced to 12, and improvements in pixel size and fill factor are achieved. Simulations promise a functional imager with high gain (50 dB) and noise floor of 98 µV.en_US
dc.identifier.citationShahin, S. (2016). An Ultra-Low Noise, Fully Differential Active Reset CMOS Imager with Transistor Based Column Parallel Common Mode Feedback for Spectrally Constructed Background Illumination Rejection (Master's thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca. doi:10.11575/PRISM/24939en_US
dc.identifier.doihttp://dx.doi.org/10.11575/PRISM/24939
dc.identifier.urihttp://hdl.handle.net/11023/3017
dc.language.isoeng
dc.publisher.facultyGraduate Studies
dc.publisher.institutionUniversity of Calgaryen
dc.publisher.placeCalgaryen
dc.rightsUniversity of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.
dc.subjectEngineering
dc.subjectEngineering--Electronics and Electrical
dc.subject.classificationImageren_US
dc.subject.classificationSensoren_US
dc.subject.classificationCommon Mode Feedbacken_US
dc.subject.classificationFully Differential Amplifieren_US
dc.subject.classificationPhotodiodeen_US
dc.subject.classificationCMOS Image Sensoren_US
dc.titleAn Ultra-Low Noise, Fully Differential Active Reset CMOS Imager with Transistor Based Column Parallel Common Mode Feedback for Spectrally Constructed Background Illumination Rejection
dc.typemaster thesis
thesis.degree.disciplineElectrical and Computer Engineering
thesis.degree.grantorUniversity of Calgary
thesis.degree.nameMaster of Science (MSc)
ucalgary.item.requestcopytrue
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