| 一种8-b 180KSPS的带有新颖的时域比较器且有效位数7.97的差分逐次逼近模数转换器 |
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| 引用本文： | 樊华,魏琦,Kobenge Sekedi Bomeh,殷秀梅,杨华中.一种8-b 180KSPS的带有新颖的时域比较器且有效位数7.97的差分逐次逼近模数转换器[J].半导体学报,2010,31(9):095011-5. |
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| 作者姓名： | 樊华 魏琦 Kobenge Sekedi Bomeh 殷秀梅 杨华中 |
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| 基金项目： | supported by the National Natural Science Foundation of China（No.60976032） |
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| 摘 要： | This paper presents a differential successive approximation register analog-to-digital converter (SAR ADC) with a novel time-domain comparator design for wireless sensor networks. The prototype chip has been implemented in the UMC 0.18-μ m 1P6M CMOS process. The proposed ADC achieves a peak ENOB of 7.98 at an input frequency of 39.7 kHz and sampling rate of 180 kHz. With the Nyquist input frequency, 68.49-dB SFDR, 7.97-ENOB is achieved. A simple quadrate layout is adopted to ease the routing complexity of the common-centroid symmetry layout. The ADC maintains a maximum differential nonlinearity of less than 0.08 LSB and integral nonlinearity less than 0.34 LSB by this type of layout.
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| 关 键 词： | ADC 合成孔径雷达 差分 时域 无线传感器网络 积分非线性 输入频率 数字转换器 |
An 8-bit 180-kS/s differential SAR ADC with a time-domain comparator and 7.97-ENOB |
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| Fan Hu,Wei Qi,Kobenge Sekedi Bomeh,Yin Xiumei and Yang Huazhong.An 8-bit 180-kS/s differential SAR ADC with a time-domain comparator and 7.97-ENOB[J].Chinese Journal of Semiconductors,2010,31(9):095011-5. |
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| Authors: | Fan Hu Wei Qi Kobenge Sekedi Bomeh Yin Xiumei and Yang Huazhong |
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| Institution: | Division of Circuits and Systems, Department of Electronic Engineering, Tsinghua University, Beijing 100084, China;Division of Circuits and Systems, Department of Electronic Engineering, Tsinghua University, Beijing 100084, China;Division of Circuits and Systems, Department of Electronic Engineering, Tsinghua University, Beijing 100084, China;Division of Circuits and Systems, Department of Electronic Engineering, Tsinghua University, Beijing 100084, China;Division of Circuits and Systems, Department of Electronic Engineering, Tsinghua University, Beijing 100084, China |
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| Abstract: | |
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| Keywords: | successive approximation register time-domain comparator analog-to-digital converter |
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