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Proceedings Paper

New readout integrated circuit using continuous time fixed pattern noise correction
Author(s): Bertrand Dupont; G. Chammings; G. Rapellin; C. Mandier; M. Tchagaspanian; Benoit Dupont; A. Peizerat; J. J. Yon
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Paper Abstract

LETI has been involved in IRFPA development since 1978; the design department (LETI/DCIS) has focused its work on new ROIC architecture since many years. The trend is to integrate advanced functions into the CMOS design to achieve cost efficient sensors production. Thermal imaging market is today more and more demanding of systems with instant ON capability and low power consumption. The purpose of this paper is to present the latest developments of fixed pattern noise continuous time correction. Several architectures are proposed, some are based on hardwired digital processing and some are purely analog. Both are using scene based algorithms. Moreover a new method is proposed for simultaneous correction of pixel offsets and sensitivities. In this scope, a new architecture of readout integrated circuit has been implemented; this architecture is developed with 0.18μm CMOS technology. The specification and the application of the ROIC are discussed in details.

Paper Details

Date Published: 15 May 2008
PDF: 12 pages
Proc. SPIE 6940, Infrared Technology and Applications XXXIV, 69402W (15 May 2008); doi: 10.1117/12.779279
Show Author Affiliations
Bertrand Dupont, CEA-LETI-MINATEC (France)
G. Chammings, CEA-LETI-MINATEC (France)
G. Rapellin, CEA-LETI-MINATEC (France)
C. Mandier, CEA-LETI-MINATEC (France)
M. Tchagaspanian, CEA-LETI-MINATEC (France)
Benoit Dupont, CEA-LETI-MINATEC (France)
A. Peizerat, CEA-LETI-MINATEC (France)
J. J. Yon, CEA-LETI-MINATEC (France)

Published in SPIE Proceedings Vol. 6940:
Infrared Technology and Applications XXXIV
Bjørn F. Andresen; Gabor F. Fulop; Paul R. Norton, Editor(s)

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