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논문 기본 정보

저자정보
(Hanyang University) (Hanyang University) (Hanyang University)
저널정보
대한전자공학회 JOURNAL OF SEMICONDUCTOR TECHNOLOGY AND SCIENCE Journal of Semiconductor Technology and Science Vol.19 No.5
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    초록·키워드

    Recently, a two-stage MASH type deltasigma ADC structure, in which a single SAR ADC functions as the quantizer for both the first and the second stages, was proposed. A challenge in the design of the MASH ADC is exact matching between the noise transfer function of the first stage and the transfer function of the digital filters which process the digital outputs. In this work, we show that the mismatch between the filter functions due to the finite gains of op-amps used in the loop filter of the deltasigma ADC can be greatly reduced by employing correlated double sampling along with the adjustments of the loop gain.

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      UCI(KEPA) : I410-ECN-0101-2020-569-000093663