| Paper Abstract and Keywords |
| Presentation |
2022-12-12 14:20
[Poster Presentation]
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.) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
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. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
CMOS image sensor / LOFIC / HDR / readout circuit / small area / / / |
| Reference Info. |
ITE Tech. Rep., vol. 46, no. 41, IST2022-53, pp. 41-42, Dec. 2022. |
| Paper # |
IST2022-53 |
| Date of Issue |
2022-12-05 (IST) |
| ISSN |
Print edition: ISSN 1342-6893 Online edition: ISSN 2424-1970 |
| Download PDF |
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| Conference Information |
| Committee |
IST |
| Conference Date |
2022-12-12 - 2022-12-13 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
Sanaru Hall |
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
5th International Workshop on Image Sensors and Imaging Systems (IWISS2022) |
| Paper Information |
| Registration To |
IST |
| Conference Code |
2022-12-IST |
| Language |
English |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
An area efficient readout circuit for CMOS Image Sensor With Lateral Overflow Integration Capacitor |
| Sub Title (in English) |
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| Keyword(1) |
CMOS image sensor |
| Keyword(2) |
LOFIC |
| Keyword(3) |
HDR |
| Keyword(4) |
readout circuit |
| Keyword(5) |
small area |
| Keyword(6) |
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| Keyword(7) |
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| 1st Author's Name |
Ai Otani |
| 1st Author's Affiliation |
Ritsumeikan University (Ritsumeikan Univ.) |
| 2nd Author's Name |
Hiroaki Ogawa |
| 2nd Author's Affiliation |
Ritsumeikan University (Ritsumeikan Univ.) |
| 3rd Author's Name |
Ken Miyauchi |
| 3rd Author's Affiliation |
Brillnics Japan Inc. (Brillnics) |
| 4th Author's Name |
Sangman Han |
| 4th Author's Affiliation |
Brillnics Japan Inc. (Brillnics) |
| 5th Author's Name |
Hideki Owada |
| 5th Author's Affiliation |
Brillnics Japan Inc. (Brillnics) |
| 6th Author's Name |
Isao Takayanagi |
| 6th Author's Affiliation |
Brillnics Japan Inc. (Brillnics) |
| 7th Author's Name |
Shunsuke Okura |
| 7th Author's Affiliation |
Ritsumeikan University (Ritsumeikan Univ.) |
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| Speaker |
Author-1 |
| Date Time |
2022-12-12 14:20:00 |
| Presentation Time |
90 minutes |
| Registration for |
IST |
| Paper # |
IST2022-53 |
| Volume (vol) |
vol.46 |
| Number (no) |
no.41 |
| Page |
pp.41-42 |
| #Pages |
2 |
| Date of Issue |
2022-12-05 (IST) |