Patent ID: 8018510

Claim:
A solid-state imaging device having a plurality of pixel units each of which includes a photoelectric conversion element, said solid-state imaging device comprising: a first capacitor which has a first terminal connected to a first pixel unit among said plurality of pixel units and accumulates electric charges corresponding to a signal outputted from said photoelectric conversion element of said first pixel unit; a second capacitor which has a first terminal connected to a second pixel unit among said plurality of pixel units and accumulates electric charges corresponding to a signal outputted from said photoelectric conversion element of said second pixel unit; a first MOS transistor disposed between said first pixel unit and the first terminal of said first capacitor; a second MOS transistor disposed between said second pixel unit and the first terminal of said second capacitor; a third MOS transistor disposed between a second terminal of said first capacitor and a second terminal of said second capacitor; a fourth MOS transistor disposed between said third MOS transistor and the second terminal of said second capacitor; a fifth MOS transistor disposed between a point at which said first MOS transistor and the first terminal of said first capacitor are connected and a point at which said fourth MOS transistor and the second terminal of said second capacitor are connected; a terminal (i) which is connected to a point at which said third MOS transistor and said fourth MOS transistor are connected, and (ii) to which a bias voltage is applied; a high input impedance circuit which has an input terminal connected between said second MOS transistor and the first terminal of said second capacitor; a sixth MOS transistor disposed between the input terminal of said high input impedance circuit and a point at which said second MOS transistor and the first terminal of said second capacitor are connected; and an output signal line connected to an output terminal of said high input impedance circuit.