In-pixel time-to-digital converter for 3D TOF cameras with time amplifier

被引：0
|
作者：
Lizhen Tang
Xiangliang Jin
Hongjiao Yang
Jia Yang
Weihui Liu
机构：
[1] Xiangtan University,School of Physics and Optoelectronics
[2] Hunan Engineering Laboratory for Microelectronics,undefined
[3] Optoelectronics and System on A Chip,undefined
来源：
Analog Integrated Circuits and Signal Processing | 2015年 / 85卷
关键词：
Time-to-digital converter (TDC); Time amplifier (TA); TOF camera;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
In this paper, a novel in-pixel time-to-digital converter (TDC) for 3D time-of-flight cameras is presented. Coarse–fine architecture has been used to guarantee both wide dynamic range and high time resolution. The proposed TDC exploits pulse-train time amplifier (TA) to further improve the time resolution and optimize time error performance. The 11-bit TDC provides 62.5 ps resolution and 126 ns full-scale range. Simulation results indicate the TDC achieves a DNL of under 0.52 LSB and INL less than 0.8 LSB. Both the TA and TDC are designed in GSMC CIS 0.18 μm 1P6M technology.
引用
收藏
页码：275 / 281
页数：6
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