@inproceedings{4069c01b6067450ea13041b6d422877b,
title = "A 12-bit 200KS/s SAR ADC with digital self-calibration",
abstract = "Aiming at the application of neural signal detection system, this paper designs a 12-bit 200KS/s high resolution successive approximation analog-to-digital converter (SAR ADC) fabricated in SMIC 0.18-μm process. An optimized digital self-calibration technique is proposed to correct the static offset of the comparator and the mismatch of the capacitor array by using a correction capacitor array, achieving 1-bit improvement of ENOB. Simulation results show that, when the input signal is 46K, the ADC fulfills an SNDR of 71.55dB and an SFDR of 91.82dB with a 200KS/s sampling rate, while the ADC only can achieve an SNDR of 65.85dB and an SFDR of 78.83dB before calibration. With the ENOB of 11.59 bit, the self-calibration SAR ADC consumes 336μW at 1.8 V power supply.",
keywords = "Digital self-calibration, High-precision, Neural signal, Offset correction, SAR ADC",
author = "Xiaojie Zhang and Maodong Wang and Liyang Guo and Xinghua Wang",
note = "Publisher Copyright: {\textcopyright} 2017 IEEE.; 2nd IEEE Advanced Information Technology, Electronic and Automation Control Conference, IAEAC 2017 ; Conference date: 25-03-2017 Through 26-03-2017",
year = "2017",
month = sep,
day = "29",
doi = "10.1109/IAEAC.2017.8054480",
language = "English",
series = "Proceedings of 2017 IEEE 2nd Advanced Information Technology, Electronic and Automation Control Conference, IAEAC 2017",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "2531--2535",
editor = "Bing Xu",
booktitle = "Proceedings of 2017 IEEE 2nd Advanced Information Technology, Electronic and Automation Control Conference, IAEAC 2017",
address = "United States",
}
