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ANALOG-TO-DIGITAL CONVERTERS FOR SUCCESSIVE APPROXIMATION INCORPORATING DELTA SIGMA ANALOG-TO-DIGITAL CONVERTERS AND HYBRID DIGITAL-TO-ANALOG CONVERTERS WITH CHARGE-SHARING AND CHARGE REDISTRIBUTION
ANALOG-TO-DIGITAL CONVERTERS FOR SUCCESSIVE APPROXIMATION INCORPORATING DELTA SIGMA ANALOG-TO-DIGITAL CONVERTERS AND HYBRID DIGITAL-TO-ANALOG CONVERTERS WITH CHARGE-SHARING AND CHARGE REDISTRIBUTION
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机译：包含SIGMA的成功近似逼近的DELTA SIGMA模数转换器和混合数模转换器的模数转换器
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摘要
An A/D converter including a sample and hold circuit, first and second A/D converters and a combination circuit. The sample and hold circuit samples an analog input signal to generate bits. The first A/D converter generate a first digital signal based on the analog input signal and includes charge-sharing and charge-redistribution D/A converters that convert respectively a most-significant-bit and a first least significant bit. The first digital signal is generated based on outputs of the charge-sharing and charge redistribution D/A converters. The second A/D converter generates a second digital signal based on an output of the first A/D converter and includes a delta sigma D/A converter, which converts a second least significant bit. The second digital signal is generated based on an output of the delta sigma D/A converter. The second A/D converter is a fine conversion A/D converter relative to the first A/D converter.
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