Analog-to-digital converter, image sensor including the same, and image processing device including the image sensor
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United States of America Patent
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Jun 14, 2016
Grant Date -
Jan 22, 2015
app pub date -
Jul 9, 2014
filing date -
Jul 19, 2013
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Abstract
An analog-to-digital converter includes a gain amplification unit configured to receive a pixel signal at a first node and to amplify a gain of the pixel signal, a first capacitor connected between the first node and a second node, an amplifier configured to receive and amplify a signal output from the gain amplification unit and the first capacitor, and a conversion circuit configured to convert an output signal of the amplifier to a digital signal based on a reference signal and output the digital signal as a first output signal.
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