Solid-state imaging apparatus having plural unit cell groups with transfer switches connected to different common output lines

A solid-state imaging apparatus comprising:

• a plurality of unit cell groups, each of the unit cell groups including a plurality unit cells;
• and
• common output lines,
• wherein each of the unit cells includes:
• a plurality of pixels each including a photoelectric conversion element corresponding to one of different colors;
• a plurality of holding units each corresponding to one of the different colors, for holding a signal from the pixels;
• a selecting switch arranged at a stage following the holding units, for selecting the signal held by the holding unit;
• and
• a transfer switch arranged at a stage following the selecting switch, for outputting the signal selected by the selecting switch to one of the common output lines, and
• wherein the plurality of unit cell groups include:
• a first unit cell group including a plurality of the transfer switches, each of the transfer switches including an output node connected to a first common output lines among the common output lines, and
• a second unit cell group including a plurality of the transfer switches, each of the transfer switches including an output node connected to a second common output line among the common output lines, but not to the first common output line, and
• wherein all of the signals from each one of the plurality of unit cell groups are read out in parallel through a corresponding one of the transfer switches to a corresponding common output line.