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Multiplying analog-to-digital converter and pipeline analog-to-digital converter using the same
Multiplying analog-to-digital converter and pipeline analog-to-digital converter using the same
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机译:乘法模数转换器和使用该模数转换器的流水线模数转换器
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摘要
A multiplying analog-to-digital converter is provided. A sample-and-hold unit samples an analog signal, to obtain a sample level. A analog-to-digital converting unit converts the analog signal to a digital signal. A digital-to-analog converting unit converts the digital signal to a recovered signal level. A operating unit provides an output signal according to the difference between the sample level and the recovered signal level. A comparator compares a level of the output signal with an upper threshold level and a lower threshold level, and accordingly provides an indicating signal, wherein the upper and lower threshold levels define a predetermined level range. When the indicating signal indicates that the level of the output signal is outside the predetermined level range, a controller shifts a value of the digital signal and accordingly provides an adjusted digital signal.
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