TY - GEN
T1 - Design of a 10-bit CMOS image sensor based on an 8-bit configurable hold-and-go counter
AU - Baek, Changsun
AU - Lim, Chaeyeol
AU - Kim, Daeyun
AU - Song, Minkyu
PY - 2012
Y1 - 2012
N2 - In this paper, a 320×240 pixel, 80 frame/s CMOS image sensor with a low power dual correlated double sampling (CDS) scheme is presented. A novel 8-bit hold-and-go counter in each column is proposed to obtain a 10-bit resolution. Furthermore, dual CDS and a configurable counter scheme are also discussed to realize efficient power reduction. With these techniques, the digital counter consumes at least 43% and at most 61% less power compared with the column counter type, and the frame rate is approximately 40% faster than the double memories type due to a partial pipeline structure without additional memories. The prototype sensor was fabricated in a Samsung 0.13μm 1P4M CMOS process and used a 4T APS with a pixel pitch of 2.25μm. The measured column fixed pattern noise (FPN) is 0.10 LSB.
AB - In this paper, a 320×240 pixel, 80 frame/s CMOS image sensor with a low power dual correlated double sampling (CDS) scheme is presented. A novel 8-bit hold-and-go counter in each column is proposed to obtain a 10-bit resolution. Furthermore, dual CDS and a configurable counter scheme are also discussed to realize efficient power reduction. With these techniques, the digital counter consumes at least 43% and at most 61% less power compared with the column counter type, and the frame rate is approximately 40% faster than the double memories type due to a partial pipeline structure without additional memories. The prototype sensor was fabricated in a Samsung 0.13μm 1P4M CMOS process and used a 4T APS with a pixel pitch of 2.25μm. The measured column fixed pattern noise (FPN) is 0.10 LSB.
UR - http://www.scopus.com/inward/record.url?scp=84870807267&partnerID=8YFLogxK
U2 - 10.1109/ESSCIRC.2012.6341277
DO - 10.1109/ESSCIRC.2012.6341277
M3 - Conference contribution
AN - SCOPUS:84870807267
SN - 9781467322126
T3 - European Solid-State Circuits Conference
SP - 393
EP - 397
BT - 2012 Proceedings of the European Solid State Circuits Conference, ESSCIRC 2012
T2 - 38th European Solid State Circuits Conference, ESSCIRC 2012
Y2 - 17 September 2012 through 21 September 2012
ER -