Paper Abstract and Keywords |
Presentation |
2019-08-08 13:55
Gain calibration technique for CMOS terahertz image sensor pixels to compensate the process variation Takahiro Ikegami, Yuma Hirata, Kotaro Sawaguchi, Yuji Nagayasu, Yuri Kanazawa, Masayuki Ikebe (Hokkaido Univ.) |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
We propose a gain compensation mechanism for CMOS terahertz image sensors. Even though we use a MOSFET envelope detector to get the envelope of terahertz (THz) wave, pixel gain variation can occur due to the process variation which affects device parameters. To compensate the pixel variation, we propose to set the operating point by current source calibration. From simulations we confirm that operating point setting can suppress the gain variation. Additionally, this improved compensation mechanism is applicable to global shutter. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
terahertz / terahertz image sensor / CMOS / envelope detector / process variation / variation compensation / global shutter / |
Reference Info. |
ITE Tech. Rep., vol. 43, no. 25, IST2019-41, pp. 49-52, Aug. 2019. |
Paper # |
IST2019-41 |
Date of Issue |
2019-08-01 (IST) |
ISSN |
Print edition: ISSN 1342-6893 Online edition: ISSN 2424-1970 |
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