Semiconductor device and method for operating semiconductor device

A semiconductor device comprising:

• a signal line comprising a first node and a second node;
• a plurality of pixels electrically connected to the signal line and positioned between the first node and the second node;
• an analog-to-digital converter circuit electrically connected to the first node and the second node;
• a sensing circuit electrically connected to the analog-to-digital converter circuit;
• and
• an amplifier circuit electrically connected to the first node and supplied with an image signal,
• wherein the analog-to-digital converter circuit is configured to convert a potential of the first node into a first signal, and to convert a potential of the second node into a second signal,
• wherein the sensing circuit is configured to generate a third signal by a comparison result of the first signal and the second signal, and
• wherein the amplifier circuit is configured to amplify the image signal in accordance with the third signal, and to output an amplified image signal to the first node.