A new readout integrated circuit for long-wavelength IR FPA |
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| Authors: | I.I. Lee |
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| Affiliation: | 1. School of Electrical & Electronic Engineering, Wuhan Polytechnic University, Wuhan 430023, Hubei, People''s Republic of China;2. Wuhan National Laboratory for Optoelectronics, Wuhan 430074, People''s Republic of China;1. Advanced Electronics Laboratory, University of Batna, Département d’Electronique, Université de Batna, 05 avenue Chahid Boukhlouf Mohamed, 05000 Batna, Algeria;2. Microelectronic and Nanotechnology Division, Centre de Développement des Technologies Avancées, 20 Aout 1956, Baba Hassan, Algiers, Algeria;3. Institut für Technische Informatik und Mikroelektronik, Technische Universität Berlin, Germany;1. Air Force Research Laboratory, Materials and Manufacturing Directorate, Wright-Patterson Air Force Base, Ohio 45433, United States;2. Department of Physics, University of Dayton, Ohio 45469, United States;1. Department of Physics and State Key Laboratory of Low-Dimensional Quantum Physics, Tsinghua University, Beijing 100084, China;2. Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China;3. Department of Physics, Yunnan University, Kunming 650091, China;1. School of Electrical & Electronic Engineering, Wuhan Polytechnic University, Wuhan 430023, China;2. Wuhan National Laboratory for Optoelectronics, Wuhan 430074, China;3. State Key Laboratory for Imagine Processing and Intelligent Control, HUST, Wuhan 430074, China;1. College of Physics, Liaoning University, Shenyang 110036, China;2. School of Computer Science and Technology, Tianjin University, Tianjin 300072, China |
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| Abstract: | ![]()
In the present paper, design of a readout integrated circuit (ROIC) for hybrid matrix IR FPA is presented. The design solution involves a ROIC matrix formed by 2 × 2-element fragments (cells) in which all the four cell elements, connected to one common read line, share a common integrating capacity. It is shown that, with the proposed ROIC structure: (i) the ROIC charge capacitance can be increased by a factor of 6–10, thus enabling two–three-fold enhanced NETD value of hybrid far-IR FPAs; (ii) the total number of read lines in IR FPAs can be decreased twice compared to traditional IR FPA designs, thus facilitating, due to doubly increased line spacing, the design of photosignal preprocessing system integrated with ROIC; (iii) improved structural arrangement of adaptive photosignal preprocessing system can be proposed. |
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