Solid-state image pickup device and method for driving the same

A solid-state image pickup device comprising:

• a pixel array unit including a plurality of pixel units which are two-dimensionally arranged in a matrix pattern, the plurality of pixel units including a first pixel unit and a second pixel unit;
• a first column signal line connected to the first pixel unit;
• a second column signal line connected to the second pixel unit;
• a first comparator that compares analog signals with a reference signal;
• a second comparator that compares analog signals with the reference signal;
• and
• switching circuitry that connects the first column signal line to the first comparator and the second comparator selectively and connects the second column signal line to the first comparator and the second comparator selectively, wherein the first comparator is adjacent to the second comparator.

A solid-state image pickup device comprising:

• a pixel array unit including a plurality of pixel units which are two-dimensionally arranged in a matrix pattern, the plurality of pixel units including a first pixel unit and a second pixel unit;
• a first column signal line connected to the first pixel unit;
• a second column signal line connected to the second pixel unit;
• a first comparator that compares analog signals with a reference signal;
• a second comparator that compares analog signals with the reference signal;
• and
• switching circuitry that directly connects the first column signal line to the first comparator and the second comparator selectively, wherein the first comparator is adjacent to the second comparator.