Successive approximation register analog-to-digital converter, CMOS image sensor including the same and operating method thereof |
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| 申请号 | US15596014 | 申请日 | 2017-05-16 | 公开(公告)号 | US09905603B1 | 公开(公告)日 | 2018-02-27 |
| 申请人 | SK hynix Inc.; | 发明人 | Tae-Gyu Kim; | ||||
| 摘要 | A complementary metal oxide semiconductor (CMOS) image sensor includes a pixel array suitable for outputting a pixel signal corresponding to incident light; a row decoder suitable for selecting and controlling pixels in the pixel array by row lines; a tracking voltage generator suitable for generating a tracking voltage; a plurality of successive approximation register (SAR) analog-to-digital converters suitable for analog-to-digital converting a pixel signal by repeatedly performing N times (where N is a natural number representing desired resolution) a process of comparing the pixel signal generated by the pixel array with the tracking voltage generated by the tracking voltage generator and modulating the pixel signal; and a control unit suitable for controlling operations of the row decoder, the tracking voltage generator, and the plurality of SAR analog-to-digital converters. | ||||||
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