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文件名称：ADC 输入噪音问题.pdf
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更新时间：2023-03-20 02:27:26
ADC 噪声
详细分析ADC的输入噪声问题和解决方案。
In this discussion we have considered the input-referred noise,
common to all ADCs. In precision, low-frequency measurement
applications, effects of this noise can be reduced by digitally
averaging the ADC output data, using lower sampling rates and
additional hardware. While the resolution of the ADC can actually
be increased by this averaging process, integral-nonlinearity errors
are not reduced. Only a small amount of input-referred noise is
needed to increase the resolution by the averaging technique;
however, use of increased noise requires a larger number of samples
in the average, so a point of diminishing returns is reached.