| Pipeline ADC的噪声与采样电容的关系 |
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| 引用本文： | 卢雪梅,刘士刚,石广源.Pipeline ADC的噪声与采样电容的关系[J].辽宁大学学报(自然科学版),2009,36(1):21-23. |
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| 作者姓名： | 卢雪梅 刘士刚 石广源 |
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| 作者单位： | 辽宁大学,物理学院,辽宁,沈阳,110036 |
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| 摘 要： | 介绍了Pipeline ADC噪声与电容的关系及减小噪声的方法，并以10位ADC为例通过噪声计算电容．ADC的主要噪声源是量化噪声和热噪声．量化噪声主要决定ADC的精度．热噪声限制了ADC的信噪比，是提高精度的主要瓶颈．可以通过增大电容来减小．
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| 关 键 词： | 流水线ADC 信噪比 量化噪声 |
The Relationship of Noise and Sample Capacitance in Pipeline ADC |
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| LU Xue-mei,LIU Shi-gang,SHI Guang-yuan.The Relationship of Noise and Sample Capacitance in Pipeline ADC[J].Journal of Liaoning University(Natural Sciences Edition),2009,36(1):21-23. |
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| Authors: | LU Xue-mei LIU Shi-gang SHI Guang-yuan |
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| Institution: | The College of Physics;Liaoning University;Shenyang 110036;China |
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| Abstract: | The relationship between noise and capacitance,and the method of decrease noise are discussed and the capacitance is calculated base on the noise by a example of 10 bits ADC.The quantization noise and thermal noise are the basic noise source of ADC.The quantization noise effect the resolution.The thermal noise restrict the signal noise ratio,it is the neck of the high resolution design.Increasing capacitance can decrease the thermal noise. |
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| Keywords: | pipeline ADC Signal Noise Ratio Quantization noise |
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