NDLI: Implementation of high performance Readout Integrated Circuit

Content Provider	IEEE Xplore Digital Library
Author	Gupta, H.S. Chakrabarti, S. Baghini, M.S. Sharma, D.K. Kiran Kumar, A.S. Mehta, S. Paul, S. Chaurasia, R.S. Chowdhury, A.R.
Copyright Year	2014
Description	Author affiliation: Space Applic. Centre, Ahmedabad, India (Kiran Kumar, A.S.; Mehta, S.; Paul, S.; Chaurasia, R.S.; Chowdhury, A.R.) \|\| Dept. of Electr. Eng., Indian Inst. of Technol. Bombay, Mumbai, India (Gupta, H.S.; Chakrabarti, S.; Baghini, M.S.; Sharma, D.K.)
Abstract	The Readout Integrated Circuit (ROIC) consists of charge integration, charge to voltage conversion, Pixel voltage multiplexing, signal transfer and amplification stage. The control circuit manages all the sequential events from charge integration to amplification stage. The large dynamic range requirement is the most challenging aspect in modern CMOS process. The infrared (IR) detectors looks for the integration of large charge handling capacity more than 10Me̅, at the same time sensitive enough to detect signals just above the noise floor of better than 900e̅. The ROIC's uses a capacitor along with active elements for signal integration and processing. The amount of charge collected is defined by the charge handling capacity and limited by the size of integrating capacitor. In addition to this, signal processing also requires multiple large capacitors, which lead to complex tradeoffs, as all these must fit within the pixel size dictated by the requirements of IR detectors. Detectors operate with relatively high bias voltage, which further complicates interface design and silicon process selection. This paper discusses design optimization and implementation of direct injection ROIC. The 4×4 array ROIC test chip has 10 Me̅ charge handling capacity , maximum pixel pitch of 30μm, snapshot mode of operation, variable integration time, 3 Mega pixels per second (Mpps) readout rate and readout noise of 350e̅ reported at ambient temperature for the first time.
Starting Page	402
Ending Page	405
File Size	661124
Page Count	4
File Format	PDF
ISBN	9781479941346
ISSN	15483746
e-ISBN	9781479941322
DOI	10.1109/MWSCAS.2014.6908437
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-08-03
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Noise Capacitors Dynamic range Linearity Detectors Arrays Clocks capacitive trans-impedance amplifier (CTIA) ROIC detectors charge handling capacity pixel size pixel rate dynamic range unity gain bandwidth (UGB) frame rate (FR)
Content Type	Text
Resource Type	Article
Subject	Electronic, Optical and Magnetic Materials Electrical and Electronic Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in