DocumentCode
1089275
Title
CMOS TDI readout circuit that improves SNR for satellite IR applications
Author
Kim, C.B. ; Hwang, C.H. ; Kim, B.H. ; Lee, Y.S. ; Lee, H.C.
Author_Institution
Korea Adv. Inst. of Sci. & Technol., Daejeon
Volume
44
Issue
5
fYear
2008
Firstpage
346
Lastpage
347
Abstract
A novel CMOS readout circuit for a satellite infrared time delay and integration (TDI) array is proposed. An integrate-while-read readout for the TDI scheme is adopted, and a dead pixel elimination circuit solving a critical problem of the TDI scheme is integrated within a chip. In addition, an adaptive charge capacity control method is utilised to improve the signal-to-noise ratio (SNR). Using the proposed circuit, the SNR at 200 K can be improved by as much as 12 dB.
Keywords
CMOS integrated circuits; aerospace instrumentation; focal planes; infrared detectors; readout electronics; CMOS TDI readout circuit; adaptive charge capacity control; dead pixel elimination circuit; focal plane arrays; integrate-while-read readout; satellite infrared; time delay integration;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:20083350
Filename
4460763
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