| 具有片上多段基准源的14位宽温度范围高SNDR全差分逐次逼近型模数转换器 |
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| 引用本文： | 乔宁,高见头,赵凯,杨波,刘忠立,于芳.具有片上多段基准源的14位宽温度范围高SNDR全差分逐次逼近型模数转换器[J].半导体学报,2011,32(8):085003-7. |
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| 作者姓名： | 乔宁 高见头 赵凯 杨波 刘忠立 于芳 |
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| 作者单位： | 中国科学院微电子研究所 |
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| 摘 要： | 介绍了一种带有片上多段带隙基准源的14位低功耗自定时全差分逐次逼近型模数转换器。采用一个在-40到120℃温度范围内具有1.3ppm/℃温度系数的片上多段带隙基准电压源来为逐次逼近型模数转换器提供高精度基准电压源。设计中用格雷码代替二进制编码来减少衬底噪声从而增加整个系统的线性度。采用自定时位循环来增加时间利用率。该14位模数转换器利用TSMC 0.13μm CMOS工艺流片。该逐次逼近型模数转换器在室温2M/s 转换速率条件下能够获得81.2dB SNDR (有效位数13.2) 和85.2dB SFDR，并且在2M/s转换速率下在-40到120℃温度范围内能够保持12位以上有效位数。
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| 关 键 词： | 宽温度范围 ADC 多段 特区 CMOS工艺 SAR 逐次逼近 温度系数 |
| 修稿时间： | 3/25/2011 6:25:59 PM |
A 14-bit wide temperature range differential SAR ADC with an on-chip multi-segment BGR |
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| Qiao Ning,Gao Jiantou,Zhao Kai,Yang Bo,Liu Zhongli and Yu Fang.A 14-bit wide temperature range differential SAR ADC with an on-chip multi-segment BGR[J].Chinese Journal of Semiconductors,2011,32(8):085003-7. |
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| Authors: | Qiao Ning Gao Jiantou Zhao Kai Yang Bo Liu Zhongli and Yu Fang |
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| Affiliation: | Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China; Department of Electronic Engineering, Tsinghua University, Beijing 100084, China;Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China;Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China;Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China;Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China;Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China |
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| Abstract: | |
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| Keywords: | differential successive approximation ADC self-timed bit-cycling gray code on-chip multi-segment BGR |
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