| 基于GaAs HBT工艺的3.8GHz带宽4GS/s 4bit超高速ADC |
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| 引用本文： | 吴旦昱,周磊,郭建楠,刘新宇,金智,陈建武. 基于GaAs HBT工艺的3.8GHz带宽4GS/s 4bit超高速ADC[J]. 半导体学报, 2011, 32(6): 065007-7 |
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| 作者姓名： | 吴旦昱 周磊 郭建楠 刘新宇 金智 陈建武 |
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| 作者单位： | 中国科学院微电子研究所,中国科学院微电子研究所,中国科学院微电子研究所,中国科学院微电子研究所,中国科学院微电子研究所,中国科学院微电子研究所 |
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| 基金项目： | 国家重点基础研究规划项目 |
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| 摘 要： | 报道了一种4GS/s 4bit超宽带（UWB）模数转换器（ADC）芯片，采用1.4um发射级宽度、2层金属布线的InGaP/GaAs HBT工艺实现。该芯片采用折叠内插架构来最小化其面积和电路规模。为了消除折叠内插电路中的偶发错误码，该ADC采用了一种新颖的比特同步电路。实测结果表明，其在4GS/s采样率下具有3.8GHz的模拟带宽和2.6GHz的有效精度带宽（ERBW），在2.6GHz输入带宽内ADC的有效位数大于3.4bit，在4GHz输入带宽内有效位大于3bit。在6.001GHz输入并将输入功率提高4dB后，有效位仍然高达3.49bit，表明该ADC可采样的频率范围包含从第一到第三奈奎斯特区（DC~6GHz）。该芯片的DNL和INL在4GS/s下均小于±0.15LSB，总面积为1.45×1.45 mm2，总功耗为1.98W。
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| 关 键 词： | 模拟数字转换器 分辨率带宽 ADC GaAs GHz HBT GS 技术 |
A 4 GS/s 4 bit ADC with 3.8 GHz analog bandwidth in GaAs HBT technology |
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| Wu Danyu,Zhou Lei,Guo Jiannan,Liu Xinyu,Jin Zhi and Chen Jianwu. A 4 GS/s 4 bit ADC with 3.8 GHz analog bandwidth in GaAs HBT technology[J]. Chinese Journal of Semiconductors, 2011, 32(6): 065007-7 |
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| Authors: | Wu Danyu Zhou Lei Guo Jiannan Liu Xinyu Jin Zhi Chen Jianwu |
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| Affiliation: | Institute of Microelectronics, Chinese Academy of Sciences, Beijing 100029, China; Key Laboratory of Microelectronics Devices & Integrated Technology, Institute of Microelectronics, Chinese Academy ofSciences, Beijing 100029, China;Institute of Microelectronics, Chinese Academy of Sciences, Beijing 100029, China; Key Laboratory of Microelectronics Devices & Integrated Technology, Institute of Microelectronics, Chinese Academy ofSciences, Beijing 100029, China;Institute of Microelectronics, Chinese Academy of Sciences, Beijing 100029, China; Key Laboratory of Microelectronics Devices & Integrated Technology, Institute of Microelectronics, Chinese Academy ofSciences, Beijing 100029, China;Institute of Microelectronics, Chinese Academy of Sciences, Beijing 100029, China; Key Laboratory of Microelectronics Devices & Integrated Technology, Institute of Microelectronics, Chinese Academy ofSciences, Beijing 100029, China;Institute of Microelectronics, Chinese Academy of Sciences, Beijing 100029, China; Key Laboratory of Microelectronics Devices & Integrated Technology, Institute of Microelectronics, Chinese Academy ofSciences, Beijing 100029, China;Institute of Microelectronics, Chinese Academy of Sciences, Beijing 100029, China; Key Laboratory of Microelectronics Devices & Integrated Technology, Institute of Microelectronics, Chinese Academy ofSciences, Beijing 100029, China |
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| Abstract: | |
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| Keywords: | ADC folding interpolating GaAs ultra-wide-band synchronization |
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