Characterization of quantization noise in oversampled analog to digital converters
The analog to digital converter (ADC) samples a continuous analog signal and produces a stream of digital words which approximate the analog signal. The conversion process introduces noise into the digital signal. In the case of an ideal ADC, where all noise sources are ignored, the noise due to the...
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| Format: | Others |
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PDXScholar
1992
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| Online Access: | https://pdxscholar.library.pdx.edu/open_access_etds/4424 https://pdxscholar.library.pdx.edu/cgi/viewcontent.cgi?article=5463&context=open_access_etds |
| Summary: | The analog to digital converter (ADC) samples a continuous analog signal and produces a stream of digital words which approximate the analog signal. The conversion process introduces noise into the digital signal. In the case of an ideal ADC, where all noise sources are ignored, the noise due to the quantization process remains. The resolution of the ADC is defined by how many bits are in the digital output word. The amount of quantization noise is clearly related to the resolution of the ADC. Reducing the quantization noise results in higher effective resolution. |
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