| 講演抄録／キーワード |
| 講演名 |
2022-12-12 14:20
［ポスター講演］An area efficient readout circuit for CMOS Image Sensor With Lateral Overflow Integration Capacitor
○Ai Otani・Hiroaki Ogawa（Ritsumeikan Univ.）・Ken Miyauchi・Sangman Han・Hideki Owada・Isao Takayanagi（Brillnics）・Shunsuke Okura（Ritsumeikan Univ.） |
| 抄録 |
（和） |
(まだ登録されていません) |
| （英） |
A lateral overflow integration capacitor (LOFIC) CMOS image sensor (CIS) can realize high dynamic range (HDR) imaging with low conversion gain (LCG) signal for large full well capacity and with high conversion gain (HCG) signal for small dark noise. However, the LOFIC CIS requires 2-channel readout circuits for LCG and HCG signals whose signal polarities are inverted. In order to provide cost efficient LOFIC CIS, a 1-channel readout circuit which can process both HCG and LCG signals is presented in this paper. The combination circuit of an inverting amplifier for HCG signal and a non-inverting attenuator for LCG signal can reduce the area of the readout circuit by half compared to the conventional 2-channel readout circuit. The readout circuit is fabricated with a 0.18µm CMOS process with MIM capacitor, achieving the readout noise of 130µVrms in the HCG mode and the signal range 1.3V in the LCG mode. |
| キーワード |
（和） |
/ / / / / / / |
| （英） |
CMOS image sensor / LOFIC / HDR / readout circuit / small area / / / |
| 文献情報 |
映情学技報, vol. 46, no. 41, IST2022-53, pp. 41-42, 2022年12月. |
| 資料番号 |
IST2022-53 |
| 発行日 |
2022-12-05 (IST) |
| ISSN |
Print edition: ISSN 1342-6893 Online edition: ISSN 2424-1970 |
| PDFダウンロード |
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