| Novel Design for High Speed and Resolution Delta-sigma A/D Converter |
| |
| 作者姓名： | TANG Sheng-xue HE Yi-gang GUO Jie-rong LI Hong-min |
| |
| 作者单位： | [1]College of Electrical and Information Engineering, Honan University, Changsha 410082, CHN [2]College of Physics Science and Information Engineering, Jishoo University, Jishoo 41600, CHN |
| |
| 基金项目： | 国家自然科学基金，Doctoral Special Found of Ministry of Education，湖南省自然科学基金，教育部高校新世纪杰出人才项目，Found of Hunan Education department |
| |
| 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.
|
| 关 键 词： | △-Y变换器 模-数转换器 动态单元匹配技术 噪声传递函数 |
| 文章编号： | 1007-0206（2007）01-0012-04 |
| 收稿时间： | 2006-09-07 |
| 修稿时间： | 2006-10-26 |
Novel Design for High Speed and Resolution Delta-sigma A/D Converter |
| |
| TANG Sheng-xue HE Yi-gang GUO Jie-rong LI Hong-min.Novel Design for High Speed and Resolution Delta-sigma A/D Converter[J].Semiconductor Photonics and Technology,2007,47(1):12-15. |
| |
| Authors: | TANG Sheng-xue HE Yi-gang GUO Jie-rong LI Hong-min |
| |
| Abstract: | 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. |
| |
| Keywords: | delta-sigma dynamic element matching(DEM) noise transfer function(NTF) |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
