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A low-noise readout circuit in 0.35-ï¿œm CMOS for low-cost uncooled FPA infrared network camera
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2009 (English)In: Proceedings of SPIE - The International Society for Optical Engineering / [ed] Bjørn F. Andresen, Gabor F. Fulop, Paul R. Norton, 2009, Vol. 7298, 72982F- p.Conference paper, Published paper (Refereed)
Abstract [en]

This paper describes a differential readout circuit technique for uncooled Infrared Focal Plane Arrays (IRFPA) sensors. The differential operation allows an efficient rejection of the common-mode noise during the biasing and readout of the detectors. This has been enabled by utilizing a number of blind and thermally-isolated IR bolometers as reference detectors. In addition, a pixel-wise detector calibration capability has been provided in order to allow efficient error corrections using digital signal processing techniques. The readout circuit for a 64ᅵ64 test bolometer-array has been designed in a standard 0.35-ᅵm CMOS process. Circuit simulations show that the analog readout at 60 frames/s consumes 30 mW from a 3.3-V supply and results in a noise equivalent temperature difference (NETD) of 125 mK for f/1 infrared optics. ᅵ2009 SPIE.

Place, publisher, year, edition, pages
2009. Vol. 7298, 72982F- p.
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-25361DOI: 10.1117/12.819826OAI: oai:DiVA.org:kth-25361DiVA: diva2:358562
Conference
Infrared Technology and Applications XXXV, Orlando, 2009
Note
QC 20101022Available from: 2010-10-22 Created: 2010-10-19 Last updated: 2011-11-22Bibliographically approved

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Niklaus, Frank

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  • apa
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