Analog to digital converting circuit and an operation method thereof

An analog to digital converting circuit includes a correlated double sampling circuit (CDS) that compares a pixel signal with a ramp signal, and outputs a comparison signal, a timing amplifier that increases an active time of the comparison signal "N" times, and outputs an extended signal,...

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Bibliographische Detailangaben
Hauptverfasser: Kim, Kyung-Min, Chae, Heesung, Kim, Yunhong
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:An analog to digital converting circuit includes a correlated double sampling circuit (CDS) that compares a pixel signal with a ramp signal, and outputs a comparison signal, a timing amplifier that increases an active time of the comparison signal "N" times, and outputs an extended signal, wherein the "N" is a positive integer, and a counter that outputs a digital signal corresponding to the pixel signal in response to the extended signal and a first clock signal.