题目/Title：A Calibration Technique for Mismatch of Capacitor Arrays in A/D and D/A converters

作者/Author：周礼兵,刘力源,李冬梅
                        Libing Zhou,Liyuan Liu,Dongmei Li

会议/Conference：PrimeAsia 2011

地点/Location：Macau, China

年份/Issue Date：2011.6-7 Oct.

页码/pages：pp. 5 - 8

摘要/Abstract：
This paper proposes a new calibration technique for capacitor array SAR ADC, here we focus on the true value and the true weight of each capacitor. By measuring the capacitor, we calculate the true weight (Wi) of each weighted-capacitor, and map this weight into m-bit code Ci (m>n). With the normal conversion code Di (n-bit), we define the first n-bit of as the ultimate output code. The simulation indicates that this method can greatly suppress harmonics, and the ENOB gets improved greatly.