A new pixel level digital read out integrated circuits for ultraviolet imaging sensors

Bin Xu; Tian-yi Lan; Yong-gang Yuan; Xiang-yang Li

doi:10.1117/12.2071159

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20 November 2014 A new pixel level digital read out integrated circuits for ultraviolet imaging sensors

Bin Xu; Tian-yi Lan; Yong-gang Yuan; Xiang-yang Li

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Proceedings Volume 9300, International Symposium on Optoelectronic Technology and Application 2014: Infrared Technology and Applications; 93000X (2014) https://doi.org/10.1117/12.2071159
Event: International Symposium on Optoelectronic Technology and Application 2014, 2014, Beijing, China

Abstract

The ultraviolet imaging sensors consist of two important parts: the array of detectors and the read out integrated circuits. Along with the demand for the fine resolution, large input dynamic range and high integration degree of the imaging sensors, the functions of read out integrated circuits are becoming more and more important. The on chip analog to digital conversion is the main directions of research on this area. In this paper, we presented a new digital read out integrated circuits for ultraviolet imaging sensors. The proposed circuits have an analog to digital converter in each pixel, which enable the parallel analog to digital conversion of the whole pixel array. The developed circuits have a 50um×50um pixel area with a 128×128 size, and are designed in a 0.35um four metal double poly mixed signal CMOS process. The simulation results show that the designed analog to digital converter has an accuracy of 0.2mV and can achieve the dynamic range of 88dB. The proposed circuits realize the low noise and high speed digital output of read out integrated circuits for ultraviolet imaging sensors.

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Bin Xu, Tian-yi Lan, Yong-gang Yuan, and Xiang-yang Li "A new pixel level digital read out integrated circuits for ultraviolet imaging sensors", Proc. SPIE 9300, International Symposium on Optoelectronic Technology and Application 2014: Infrared Technology and Applications, 93000X (20 November 2014); https://doi.org/10.1117/12.2071159

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