Solid-state image sensor, electronic apparatus, and control method of solid-state image sensor

A solid-state image sensor comprising:

• a current mirror circuit including a first transistor and a second transistor;
• a current source circuit;
• a first pixel circuit coupled to a source or a drain of the first transistor and further coupled to the current source circuit at a first node, the first pixel circuit including a first amplifier transistor and a first photodiode;
• a second pixel circuit coupled to a source or a drain of the second transistor and further coupled to the first node, the second pixel circuit including a second amplifier transistor and a second photodiode;
• a control circuit coupled between the first node and a second node, wherein the second node is coupled between the source or the drain of the first transistor and a source or a drain of the first amplifier transistor, wherein the second node is configured to output a pixel signal;
• a ramp signal generation circuit configured to output a ramp signal;
• and
• a comparator configured to compare the ramp signal and the pixel signal,
• wherein a gate of the first amplifier transistor is configured to receive a first one of a pair of differential input voltages and a gate of the second amplifier transistor is configured to receive a second one of the pair of differential input voltages.