Analog-to-digital converter having a switched capacitor circuit
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United States of America Patent
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Sep 19, 2017
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app pub date -
Aug 29, 2016
filing date -
Mar 14, 2016
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Abstract
An analog-to-digital converter includes a switched capacitor circuit, an analog-to-digital conversion circuit, and a constant current circuit. The switched capacitor circuit includes first and second input terminals for a differential input, and is configured to sample an analog voltage of the differential input. The analog-to-digital conversion circuit is connected to output terminals of the switched capacitor circuit, and configured to convert the sampled analog voltage into a digital signal and output the digital signal. The constant current circuit is connected to at least one of the first and second input terminals.
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