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Proceedings Paper

Analysis and design of low noise column stage in CMOS ROIC for UV GaN focal plane array
Author(s): Xiaojuan Li; Yonggang Yuan; Jing Xie; Jiqiang Wang; Ding Ma; Ling Wang; Xiangyang Li
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Paper Abstract

A novel column-stage structure of readout integrated circuit (ROIC) for GaN ultraviolet (UV) focal plane array (FPA) working in “solar-blind” band is proposed. The column stage has better drive capability, higher dynamic range, stable bias current and low impedance. The noise voltage of the column readout stage is discussed, which has been reduced by small-current driving, column-stage sample and hold and the technology of divided-output-bus. This research on low-noise ROIC is designed for weak-current UV FPA. It is designed, simulated and laid out using the 0.35um 2P4M CMOS 5V process. The clock rate operates at 8MHz. The simulation input current sets 0.01nA. The output swing is 2.6V and power consumption is 40 mW according to the measurement results.

Paper Details

Date Published: 4 March 2015
PDF: 6 pages
Proc. SPIE 9521, Selected Papers from Conferences of the Photoelectronic Technology Committee of the Chinese Society of Astronautics 2014, Part I, 95211S (4 March 2015); doi: 10.1117/12.2182560
Show Author Affiliations
Xiaojuan Li, Shanghai Institute of Technical Physics (China)
Yonggang Yuan, Shanghai Institute of Technical Physics (China)
Jing Xie, Shanghai Institute of Technical Physics (China)
Jiqiang Wang, Shanghai Institute of Technical Physics (China)
Ding Ma, Shanghai Institute of Technical Physics (China)
Ling Wang, Shanghai Institute of Technical Physics (China)
Xiangyang Li, Shanghai Institute of Technical Physics (China)


Published in SPIE Proceedings Vol. 9521:
Selected Papers from Conferences of the Photoelectronic Technology Committee of the Chinese Society of Astronautics 2014, Part I
Xun Hou; Zhihong Wang; Lingan Wu; Jing Ma, Editor(s)

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