CKC & Partners Co., LLC
Calibration method and related calibration system
A calibration method applicable for a SAR ADC comprising a capacitor array, comprises the following operations: Inputting an input signal to the SAR ADC, wherein the SAR ADC is configured to generate an output signal according to the input signal, and the output signal comprises multiple selected digital codes; calculating average code densities for multiple digital code groups, respectively, wherein the multiple digital code groups are determined by dividing the multiple selected digital codes, and each of the multiple digital code groups comprises one or more selected digital codes of the multiple selected digital codes; calibrating capacitance of a first under-correction capacitor element of the capacitor array according to the first comparison result.
GLOBAL UNICHIP CORPORATION TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.
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inventional inventional inventional inventional
Ting-Hao Yu-Chu
Wang Chen