抄録
A 1/3-inch 640 × 480-pixel CMOS image sensor was developed using a simple fixed-pattern-noise-reduction technology with a five-transistor pixel circuit and a low input-voltage I-V converter. In this report, we show the effectiveness of a low input-voltage I-V converter with a current-mirror circuit in improving the amplification ratio and linearity of a pixel circuit. The dependence of the pixel signal characteristics on the parameters of the pixel transistors was also analyzed. In a five-transistor pixel circuit, the threshold voltage of the X-Y addressing transistor affects the amplitude and level of the readout pulse. This report also contains analysis of the mechanism of the X-Y addressing transistor, illustrating the concept behind the selection of the threshold voltage.
本文言語 | English |
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ページ(範囲) | 670-678 |
ページ数 | 9 |
ジャーナル | Kyokai Joho Imeji Zasshi/Journal of the Institute of Image Information and Television Engineers |
巻 | 56 |
号 | 4 |
DOI | |
出版ステータス | Published - 2002 4月 |
外部発表 | はい |
ASJC Scopus subject areas
- メディア記述
- コンピュータ サイエンスの応用
- 電子工学および電気工学