Solid-state imaging device
Abstract
Abstract Translated from Japanese (57)【要約】 【課題】複数の画素の読み出し信号の間で直流レベルの 差が生じないようにし、画質向上を得る。 【解決手段】複数のアナログデジタル変換器を有し、前 記アナログデジタル変換器の出力を順次選択し、デジタ ル映像出力を得る固体撮像素子において、ノイズキャン セル(比較)部NR1を複数段の増幅器501,502で 構成するとともに、2段目以降の増幅器502にクラン プ回路を設けた構成とする。 (57) [Problem] To improve the image quality by preventing a difference in DC level between read signals of a plurality of pixels. In a solid-state imaging device having a plurality of analog-to-digital converters and sequentially selecting outputs of the analog-to-digital converters to obtain a digital video output, a noise canceling (comparing) unit NR1 includes a plurality of stages of amplifiers 501 and 501. 502 and a configuration in which a clamp circuit is provided in the amplifier 502 in the second and subsequent stages.
Inventors
- 👤 Tadashi Sugiki
- 👤 忠 杉木
Bibliographic Details
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