CAJ | 학술논문

数字校准是高速高精度流水线ADC设计中的关键技术之一。文章提出了一种可通过校准控制生成测试信号，自动计算权重来对流水线ADC中电容失配进行误差补偿的技术。该技术能有效地减小增益有限、电荷注入等非理想因素的影响，使校准输出后的数据拥有更高的准确度，提高了系统的线性度。
수자교준시고속고정도류수선ADC설계중적관건기술지일。문장제출료일충가통과교준공제생성측시신호，자동계산권중래대류수선ADC중전용실배진행오차보상적기술。해기술능유효지감소증익유한、전하주입등비이상인소적영향，사교준수출후적수거옹유경고적준학도，제고료계통적선성도。
Digital calibration technique is one of the key techniques in the ADC design of high speed and high precision pipeline. This paper proposes a technique for compensating the capacitance mismatch errors of pipelined ADC, which automatically calculates the weight by calibrating control to generate testing signal. The technique can effectively reduce the non-ideal factors such as limited gains and charge injection, make the output data after calibration have higher accuracy, thereby improving the linearity of the system.