According to one embodiment, a time difference amplifier circuit includes the first amplifier including first positive and negative inputs and first positive and negative outputs, the second amplifier including second positive and negative inputs and second positive and negative outputs, first to fourth wirings, a selection circuit including the first selection element connecting the first or fourth wirings to the second positive input, and the second selection element connecting the second or third wirings to the second negative input, and a control circuit connecting the amplifiers by the first and second wirings or by the third and fourth wirings.