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20位∑-△A/D转换器的设计 被引量：3

The Design of a 20-bit Sigma-Delta Analog-to-Digtial Converters
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摘要 文章介绍了20位、5V单电源过采样∑-△A/D转换器,根据精度与阶数和过采样比的关系,设计了4阶蒡-驻调制器。在∑-△调制器中添加了局部负反馈,使转换器能对满量程(FS)输入信号进行精确转换;在梳状滤波器后面添加了补偿电路,补偿梳状滤波器在基带内的衰减,使基带内的纹波小于0.001dB。本电路采用0.6滋mCMOS工艺,电路的结构和精度通过了HSPICE、STAR-SIM等EDA软件的验证。 This paper presents a5V20-bit oversampling delta-sigma A/D converter.According to the relationship among reso-lution,order and oversampling ratio,a fourth-order cascaded delta-sigma modulator has been designed.The fourth-order cascaded delta-sigma modulator offer a local feedback tech-nique so as to avoid overload without sacrifice in noise perfor-mance.To compensate the degradation of decimator in pass-band,a compensating function has been applied after the deci-mator.The function and performance of the circuit in0.6COMS technology has been verified with Hspice simulator and mixed simulator STAR-SIM.
作者 张奇荣 权海洋 张义门
机构地区 西安微电子技术研究所 西安电子科技大学
出处 《微电子学与计算机》 CSCD 北大核心 2003年第6期4-7,共4页 Microelectronics & Computer
关键词 20位Σ-ΔA/D转换器 模数转换器 设计 数字集成电路 梳状滤波器 Sigma-delta modulation,Comb-filter,Full-scale
分类号 TP335.1 [自动化与计算机技术—计算机系统结构]
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参考文献8

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同被引文献21

  • 1李宏星,冯晖,林争辉.高阶Sigma-delta调制器传递函数设计方法[J].微电子学与计算机,2004,21(6):147-150. 被引量：5
  • 2李罗生,洪缨,侯朝焕.一种高性能的Σ-ΔA/D转换器的设计[J].微电子学与计算机,2005,22(1):136-139. 被引量：7
  • 3NORSWORTHY S,SCHREIER R,TEMES G.Delta-Sigma Data Converters:Theory,Design,and Simulations.New York:Wiley-IEEE Press,1996.
  • 4SU D.Oversampling Digital-to-Analog Conversion.[PhD dissertation].Stanford:Stanford University,1994.
  • 5BAIRD R,FIEZ T.Linearity enhancement of multi bit delta-sigma A/D and D/A converters using data weighted averaging.IEEE Transaction on Circuits and Systems Ⅱ,1995,42(12):753 -762.
  • 6YASUDA A,TANIMOTOH,IIDA T.A third-order modulator using second-order noise-shaping dynamic element matching.IEEE Journal of Solid-State Circuits,1998,33 (12):1879-1886.
  • 7FUJIMORI,NOGI A,SUGIMOTO T.A Multi bit Deha-Sigma Audio DAC with 120 -dB Dynamic Range.IEEE Journal of Solid-State Circuits,2000,35(8):1066-1073.
  • 8SONG J,PARK I C.Spur-Free MASH Delta-Sigma Modulation.IEEE Transaction on Circuits and Systems I:Regular Papers,2010,(99):1-1.
  • 9R W Stewart.An overview of sigma delta ADCs and DAC devices[C].IEEE Colloquium,1995
  • 10Augusto Marques,Vincenzo Peluso,Michel S.Steyaert et al.Optimal parameters for ΔΣ modulator topologies[J].IEEE Transactions on Circuits and Systems-Ⅱ:Analog and digital signal processing,1998,45(9):1232～1241

引证文献3

二级引证文献9

微电子学与计算机
2003年 第6期

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