PHOTOELECTRIC CONVERSION DEVICE

To provide a photoelectric conversion device capable of outputting signals of higher quality.SOLUTION: A photoelectric conversion device includes: a plurality of pixels arranged to form a plurality of columns; output lines arranged corresponding to each of the plurality of columns, through which sig...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: KUMAKI SATOSHI, OSHITAUCHI KAZUKI
Format: Patent
Sprache:eng ; jpn
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Beschreibung
Zusammenfassung:To provide a photoelectric conversion device capable of outputting signals of higher quality.SOLUTION: A photoelectric conversion device includes: a plurality of pixels arranged to form a plurality of columns; output lines arranged corresponding to each of the plurality of columns, through which signals are output from corresponding pixels; and comparison units arranged corresponding to the plurality of columns, respectively, and each having a first input terminal and a second input terminal, the first input terminal receiving an input signal corresponding to a potential of the output line, the second input terminal receiving a reference signal as input. The comparison unit performs an offset clamping operation, and then performs comparison for analog-to-digital conversion of a signal input from a pixel.SELECTED DRAWING: Figure 2 【課題】より高品質な信号を出力し得る光電変換装置を提供する。【解決手段】複数の列をなすように配された複数の画素と、前記複数の列の各々に対応して配され、対応する画素から信号が出力される出力線と、前記複数の列の各々に対応して配され、第1入力端子及び第2入力端子を有し、前記第1入力端子に前記出力線の電位に応じた信号が入力され、前記第2入力端子に参照信号が入力される比較部と、を有し、前記比較部は、オフセットクランプ動作を行い、その後、画素から入力される信号のアナログデジタル変換のための比較を行う。【選択図】図2