TY - GEN
T1 - Design of a Low Power CMOS Image Sensor with an in-Comparator Forcasting Technique and a Novel Counter
AU - Lee, Kyungmin
AU - Heu, Seung Min
AU - Kim, Soo Youn
AU - Song, Minkyu
N1 - Publisher Copyright:
© 2024 IEEE.
PY - 2024
Y1 - 2024
N2 - This paper presents an in-comparator forecasting technique (IFT) and a novel counter for low power CMOS image sensors. The proposed circuit employs a closed-loop capacitive amplifier as a zero-crossing forecaster which is positioned between the first and second-stage comparator. This circuit provides excellent tolerance to process, voltage, temperature variations, low gain variation, and a clearly defined switching gain. Further, a novel counter to implement IFT is discussed. The proposed CIS is demonstrated using a 110nm image sensor process with an image resolution of 640 x 480 and a 2.8/1.5V power supply. The measured results show that the power consumption of digital blocks, including counters, is reduced by 40% with the proposed IFT, leading to a 20% reduction in total power consumption.
AB - This paper presents an in-comparator forecasting technique (IFT) and a novel counter for low power CMOS image sensors. The proposed circuit employs a closed-loop capacitive amplifier as a zero-crossing forecaster which is positioned between the first and second-stage comparator. This circuit provides excellent tolerance to process, voltage, temperature variations, low gain variation, and a clearly defined switching gain. Further, a novel counter to implement IFT is discussed. The proposed CIS is demonstrated using a 110nm image sensor process with an image resolution of 640 x 480 and a 2.8/1.5V power supply. The measured results show that the power consumption of digital blocks, including counters, is reduced by 40% with the proposed IFT, leading to a 20% reduction in total power consumption.
KW - CMOS Image Sensor(CIS)
KW - In-comparator Forecasting Technique (IFT)
KW - Novel Counter
KW - Zero-crossing Forecaster
UR - https://www.scopus.com/pages/publications/85217617613
U2 - 10.1109/ICECS61496.2024.10849320
DO - 10.1109/ICECS61496.2024.10849320
M3 - Conference contribution
AN - SCOPUS:85217617613
T3 - Proceedings of the IEEE International Conference on Electronics, Circuits, and Systems
BT - 2024 31st IEEE International Conference on Electronics, Circuits and Systems, ICECS 2024
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 31st IEEE International Conference on Electronics, Circuits and Systems, ICECS 2024
Y2 - 18 November 2024 through 20 November 2024
ER -