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中文摘要：
三角洲西格马变换器是高速度和分辨率 analog-to-digital 调节的人之一。它的实现需要低 oversampling 技术和多小点承兑交单变换器。多小点承兑交单变换器导致的噪音成为败坏的关键因素之一三角洲西格马 A/D 变换器的 signal-to-noise 率。有信号统一 transfunction 的新奇结构，匹配的动态元素(DEM ) 并且塑造噪音被讨论。方法被调查基于建议结构设计变换器。行为模拟显示结构和设计方法是可行的。
英文摘要：
The delta-sigma converter is one of the high speed and resolution analog-to-digital modulators. Its implementation needs the low oversampling technique and the multi-bit D/A converter. The noise induced by the multi-bit D/A converter becomes one of the key factors deteriorating the signal-to-noise rate of the delta- sigma A/D converter. A novel structure with signal unity transfunction, dynamic element matching（DEM） and noise-shaping is discussed. The method is investigated to design converter based on the proposed structure. The behavior simulation indicates that the structure and the design method are feasible.
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