Photoelectric conversion apparatus with fully differential amplifier

A photoelectric conversion apparatus, comprising:

• a pixel area where a plurality of pixels are arranged;
• an amplifier configured to amplify a signal from the pixel area;
• and
• a plurality of signal paths for transmitting signals from the pixel area to the amplifier,
• wherein the amplifier is a fully differential amplifier that includes a plurality of input terminals, including a first input terminal and a second input terminal to which the signals from the plurality of signal paths are supplied, and a plurality of output terminals, including a first output terminal and a second output terminal,
• wherein a gain of the fully differential amplifier is determined based on a resistor inside the fully differential amplifier, and
• wherein the fully differential amplifier further includes:
• a voltage-current conversion circuit including a third output terminal and a fourth output terminal for outputting a differential signal between the signals supplied to the first input terminal and the second input terminal, and
• a current-voltage conversion circuit including a third input terminal and a fourth input terminal to which the differential signal from the voltage-current conversion circuit is supplied and using the first output terminal and the second output terminal as output terminals.