ADC四

mylcx_xwf

【文件名】:06424@52RD_ADC4.pdf
【格　式】:pdf
【大　小】:204K
【简　介】:The Good, the Bad, and the Ugly Aspects of ADC Input Noise –Is No Noise Good Noise?
【目　录】:
INTRODUCTION
All analog-to-digital converters (ADCs) have a certain amount of "input-referred noise" –
modeled as a noise source connected in series with the input of a noise-free ADC. Input-referred
noise is not to be confused with quantization noise which only occurs when an ADC is processing
an ac signal. In most cases, less input noise is better, however there are some instances where input
noise can actually be helpful in achieving higher resolution. This probably doesn't make sense right
now, so you will just have to read further into this tutorial to find out how SOME noise can be
GOOD noise.
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