Improving A/D Converter Performance Using Dither
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چکیده
Many analog-to-digital converter applications require low distortion for a very wide dynamic range of signals. Unfortunately, the distortion caused by digitizing an analog signal increases as the signal amplitude decreases, and is especially severe when the signal amplitude is of the same order as the quantizing step. In digital audio applications, for example, low-level signals occur often, sometimes alone and sometimes in the presence of larger signals. If these lowlevel signals are severely distorted by the quantization process, the usefulness of the system is greatly diminished.
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تاریخ انتشار 1995