Patent ID: 8218049

Claim:
A solid-state image sensing device comprising: a pixel array unit including (a) unit pixels, arranged in an array of rows and columns, each unit pixel including a photoelectric conversion unit, and (b) vertical signal lines, each vertical signal line interconnected to one of the columns of the pixel array; and a column processing unit including a unit readout circuit associated with a set of a predetermined number of columns of the columns of the pixel array, the column processing unit processing (a) a reset signal generated due to an operation of resetting a potential of the photoelectric conversion unit of one of the pixel units and (b) a received-light photoelectric conversion signal (i) generated due to a photoelectric conversion operation and (ii) output from the unit pixel to the respective vertical signal line, wherein, the unit readout circuit includes (a) a plurality of input switches, an input end of each of the input switches being connected to an end of a respective one of the vertical signal lines of the set of predetermined number of columns, the input switches being sequentially turned on and off, (b) at least one input side capacitor having one end commonly connected to the output ends of the input switches, (c) a reference switch configured to selectively provide a reference voltage to the input side capacitor, (d) an operational amplifier having an input end connected to the other end of the input side capacitor, (e) a reset switch configured to selectively make a short-circuit between the input end and an output end of the operational amplifier, and (d) a plural of feedback circuits, a respective feedback circuit provided for each of the columns of the pixel array, each feedback circuit including a feedback switch and a feedback capacitor connected in series between the input end and the output end of the operational amplifier.