| 講演抄録／キーワード |
| 講演名 |
2016-11-17 16:30
［ポスター講演］A High-speed Low-power CMOS Image Sensor with Delta and Interpolation Readout Scheme
○Hyeon-June Kim・Sun-Il Hwang・Seung-Tak Ryu（KAIST） |
| 抄録 |
（和） |
This paper presents a high-speed low-power readout scheme for CMOS image sensors (CISs) that utilizes the image properties.The proposed delta and interpolation readout (DI-readout) scheme reads the signal difference between two adjacent pixels (ツpixel) by utilizing MSBs information of the previous pixel, using large ツpixel for interpolation and small ツpixel for delta readout.By effectively reducing the dynamic range of the signal, the proposed readout scheme can reduce the number of decision cycles and the power consumption of SAR ADC. A prototype QQVGA CIS with ten 10-bit SAR ADCs was fabricated in a 0.18 レm 1P4M CIS process with a 4.4 レm pixel pitch. The measurement results of the implemented prototype CIS showed a figure-of-merit (FoM) for imager of 0.35 e-nJ. |
| （英） |
This paper presents a high-speed low-power readout scheme for CMOS image sensors (CISs) that utilizes the image properties.The proposed delta and interpolation readout (DI-readout) scheme reads the signal difference between two adjacent pixels (ツpixel) by utilizing MSBs information of the previous pixel, using large ツpixel for interpolation and small ツpixel for delta readout.By effectively reducing the dynamic range of the signal, the proposed readout scheme can reduce the number of decision cycles and the power consumption of SAR ADC. A prototype QQVGA CIS with ten 10-bit SAR ADCs was fabricated in a 0.18 レm 1P4M CIS process with a 4.4 レm pixel pitch. The measurement results of the implemented prototype CIS showed a figure-of-merit (FoM) for imager of 0.35 e-nJ. |
| キーワード |
（和） |
low power / high speed / delta / SAR ADC / multi-column / delta-readout / / |
| （英） |
low power / high speed / delta / SAR ADC / multi-column / delta-readout / / |
| 文献情報 |
映情学技報, vol. 40, no. 40, IST2016-67, pp. 39-40, 2016年11月. |
| 資料番号 |
IST2016-67 |
| 発行日 |
2016-11-10 (IST) |
| ISSN |
Print edition: ISSN 1342-6893 Online edition: ISSN 2424-1970 |
| PDFダウンロード |
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