| 高速ADC构成的并行/交替式数据采集系统的非线性研究 |
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| 引用本文： | 吴芝路,施雪华,任广辉,王金龙.高速ADC构成的并行/交替式数据采集系统的非线性研究[J].哈尔滨商业大学学报(自然科学版),2001,17(4):37-39,43. |
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| 作者姓名： | 吴芝路 施雪华 任广辉 王金龙 |
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| 作者单位： | 哈尔滨工业大学,电子与通信工程系,黑龙江,哈尔滨,150001 |
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| 基金项目： | 国家自然科学基金资助项目(69872021) |
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| 摘 要： | 研究了高速ADC及由其构成的并行?交替式数据采集系统的DNL(微分非线性)与INL(积分非线性)及有关测试理论与方法。由单片ADC的DNL和INL导出了并行?交替式数据采集系统的DNL和INL的数学表达式;采用统计直方图方法分别对单片ADC和由双片ADC组成的并行?交替式数据采集系统进行了计算机仿真。结果表明,并行?交替式数据采集系统的DNL与INL小于每一通道单片ADC的DNL和INL。
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| 关 键 词： | ADC DNL INL 数据采集 |
| 文章编号： | 1004-1842(2001)04-0037-03 |
| 修稿时间： | 2001年10月18 |
Nonlinearity of An Interleaving/Multiplexing Data-Acquisition System with High-Speed ADC |
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| WU Zhi-lu,SHI Xue-hua,REN Guang-hui,WANG Jin-long.Nonlinearity of An Interleaving/Multiplexing Data-Acquisition System with High-Speed ADC[J].Journal of Harbin University of Commerce :Natural Sciences Edition,2001,17(4):37-39,43. |
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| Authors: | WU Zhi-lu SHI Xue-hua REN Guang-hui WANG Jin-long |
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| Abstract: | The differential nonlinearties(DNL)and integral nonlinearities(INL)of high-peed ADC and a data-acquisition system with interleaving?multiplexing and their measurement methods are discussed.The mathematical expression of DNL and INL of data-acquisition system with interleaving?multiplexing is demonstrated by the DNL and INL of monolithic ADC.Furthermore,the simulations of monolithic ADC and data-acquisition system with two ADC are finished with histogram methods.It is shown that the DNL and INL errors of data-acquisition system with two ADC are smaller than linearity errors of each ADC channel. |
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| Keywords: | analog-to-digital conversion differential nonlinearities integral nonlinearities data-acquisition |
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