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Two-step single-slope comparator with high-resolution and high-speed and CMOS image sensor including the same
Two-step single-slope comparator with high-resolution and high-speed and CMOS image sensor including the same
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机译:具有高分辨率和高速的两步单斜率比较器以及包括该比较器的CMOS图像传感器
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摘要
A comparator includes a first comparison block suitable for accumulating a difference value between a voltage of a pixel signal and a coarse step voltage, and outputting a residue voltage, representing a difference between a coarse ramping voltage of a ramp signal and the accumulated difference value; and a second comparison block suitable for comparing a fine ramping voltage to the residue voltage of the first comparison block and outputting a third comparison result signal.
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