| New Active Digital Pixel Circuit for CMOS Image Sensor |
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| 作者姓名： | WU Sun-tao ZHANG Wen-ru GUO Dong-hui Parr Gerard Morrow Philip |
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| 作者单位： | 1.Dept. of Phys.，Xiamen University，Xiamen 361005，CHN; 2. Faculty of Informatics，University of Ulster，BT52 1SA，N.Ireland，UK |
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| 基金项目： | 国家自然科学基金，福建省自然科学基金 |
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| 摘 要： | A new active digital pixel circuit for CMOS image sensor is designed consisting of four components: a photo-transducer, a preamplifier, a sample & hold (S & H) circuit and an A/D converter with an inverter. It is optimized by simulation and adjustment based on 2 μm standard CMOS process. Each circuit of the components is designed with specific parameters. The simulation results of the whole pixel circuits show that the circuit has such advantages as low distortion, low power consumption, and improvement of the output performances by using an inverter.
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| 关 键 词： | 电路设计 图像传感器 电荷偶合器件 CMOS 像素 电荷耦合器件 |
| 收稿时间： | 2001/2/14 |
New Active Digital Pixel Circuit for CMOS Image Sensor |
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| WU Sun-tao,ZHANG Wen-ru,GUO Dong-hui,Parr Gerard,Morrow Philip.New Active Digital Pixel Circuit for CMOS Image Sensor[J].Semiconductor Photonics and Technology,2001,7(2):65-69,75. |
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| Authors: | WU Sun-tao ZHANG Wen-ru GUO Dong-hui Parr Gerard Morrow Philip |
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| Abstract: | A new active digital pixel circuit for CMOS image sensor is designed consisting of four components: a photo-transducer, a preamplifier, a sample & hold (S & H) circuit and an A/D converter with an inverter. It is optimized by simulation and adjustment based on 2μm standard CMOS process. Each circuit of the components is designed with specific parameters. The simulation results of the whole pixel circuits show that the circuit has such advantages as low distortion, low power consumption, and improvement of the output performances by using an inverter. |
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| Keywords: | CMOS image sensor Active pixel circuit Circuit design |
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