Image sensor, image device having the same, and operating method thereof

An image sensor includes a first amplifier comparing and amplifying a first voltage signal received from a first column line, and a ramp signal; a second amplifier amplifying an output of the first amplifier; a third amplifier comparing and amplifying a second voltage signal received from a second c...

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Bibliographische Detailangaben
Hauptverfasser: Kim, Kyungtae, Chae, Heesung, Jung, Yunhwan, Cho, Yongjun, Kang, Sunyool
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:An image sensor includes a first amplifier comparing and amplifying a first voltage signal received from a first column line, and a ramp signal; a second amplifier amplifying an output of the first amplifier; a third amplifier comparing and amplifying a second voltage signal received from a second column line, and the ramp signal; and a fourth amplifier amplifying an output of the third amplifier, wherein the second amplifier and the fourth amplifier output a decision signal at different points in time by dummy switch control split.