Analog to digital conversion apparatus and method having quick conversion mechanism

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United States of America Patent

PATENT NO 11876526
APP PUB NO 20220337259A1
SERIAL NO

17670536

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Abstract

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The present invention discloses an analog to digital conversion (ADC) apparatus having quick conversion mechanism. Each of ADC circuits receives a previous higher-bit conversion result to perform prediction to generate a current higher-bit conversion result, performs conversion on an input analog signal according to a sampling clock that has a frequency at least twice of the frequency of the input analog signal based on a successive-approximation mechanism to generate a current lower-bit conversion result, and combines the current higher-bits and current lower-bit conversion results to generate a current conversion result and output a remained signal amount as a residue. A noise-shaping circuit performs calculation based on the residue to generate a noise-shaping reference signal. Each of the ADC circuits combines the current conversion result and the noise-shaping reference signal to generate an output digital signal.

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Patent Owner(s)

Patent OwnerAddress
REALTEK SEMICONDUCTOR CORPORATIONNO 2 INNOVATION ROAD II HSINCHU SCIENCE PARK HSINCHU 300

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Huang, Shih-Hsiung Hsinchu, TW 139 320
Lin, Kai-Yue Hsinchu, TW 11 1
Shih, Sheng-Yen Hsinchu, TW 6 0
Wang, Wei-Jyun Hsinchu, TW 16 9

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