TY - GEN
T1 - A 98.1-dB SNDR 188-dB FoMSNoise-Shaping SAR ADC Using Series Connection Capacitors
AU - Jing, Xixin
AU - Lan, Zhechong
AU - Zhang, Bing
AU - Dong, Li
AU - Xin, Youze
AU - Guo, Zhuoqi
AU - Xue, Zhongming
AU - Geng, Li
N1 - Publisher Copyright:
© 2021 IEEE.
PY - 2021/8/9
Y1 - 2021/8/9
N2 - This paper proposes a noise-shaping (NS) successive approximation register (SAR) analog-to-digital converter (ADC), which can be well applied in very high-precision and low-power-applications for Internet of Things (IoTs). An error feedback (EF) through the series connection of capacitors is implemented in the topology, which ensures that the input signal and feedback signal are not attenuated. Therefore, a small gain dynamic amplifier can be used, which has advantages of low power consumption and process-friendly characteristics. Designed in 55-nm CMOS process, the prototype of proposed NS-SAR ADC consumes very low power consumption of 623.6 μW when operating at 40 MS/s, which achieves a peak Schreier FoM of 188 dB with 98-dB signal to noise and distortion ratio (SNDR) at an oversampling ratio (OSR) of 16.
AB - This paper proposes a noise-shaping (NS) successive approximation register (SAR) analog-to-digital converter (ADC), which can be well applied in very high-precision and low-power-applications for Internet of Things (IoTs). An error feedback (EF) through the series connection of capacitors is implemented in the topology, which ensures that the input signal and feedback signal are not attenuated. Therefore, a small gain dynamic amplifier can be used, which has advantages of low power consumption and process-friendly characteristics. Designed in 55-nm CMOS process, the prototype of proposed NS-SAR ADC consumes very low power consumption of 623.6 μW when operating at 40 MS/s, which achieves a peak Schreier FoM of 188 dB with 98-dB signal to noise and distortion ratio (SNDR) at an oversampling ratio (OSR) of 16.
KW - Successive approximation register analog-to-digital converter (SAR ADC)
KW - closed-loop dynamic amplifier
KW - error feedback
KW - noise-shaping
KW - series connection capacitors
UR - https://www.scopus.com/pages/publications/85115656689
U2 - 10.1109/MWSCAS47672.2021.9531721
DO - 10.1109/MWSCAS47672.2021.9531721
M3 - 会议稿件
AN - SCOPUS:85115656689
T3 - Midwest Symposium on Circuits and Systems
SP - 10
EP - 13
BT - 2021 IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2021 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2021 IEEE International Midwest Symposium on Circuits and Systems, MWSCAS 2021
Y2 - 9 August 2021 through 11 August 2021
ER -