Analysis and design of low noise column stage in CMOS ROIC for UV GaN focal plane array

Xiaojuan Li; Yonggang Yuan; Jing Xie; Jiqiang Wang; Ding Ma; Ling Wang; Xiangyang Li

doi:10.1117/12.2182560

4 March 2015 Analysis and design of low noise column stage in CMOS ROIC for UV GaN focal plane array

Xiaojuan Li, Yonggang Yuan, Jing Xie, Jiqiang Wang, Ding Ma, Ling Wang, Xiangyang Li

Proceedings Volume 9521, Selected Papers from Conferences of the Photoelectronic Technology Committee of the Chinese Society of Astronautics 2014, Part I; 95211S (2015) https://doi.org/10.1117/12.2182560
Event: Selected Proceedings of the Photoelectronic Technology Committee Conferences held August-October 2014, 2014, China, China

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.

Citation Download Citation

Xiaojuan Li, Yonggang Yuan, Jing Xie, Jiqiang Wang, Ding Ma, Ling Wang, and Xiangyang Li "Analysis and design of low noise column stage in CMOS ROIC for UV GaN focal plane array", 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); https://doi.org/10.1117/12.2182560

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