Solid state image sensing device

摘要

A level shifter ( 181 ) shifts a signal level of a noise signal produced from a pixel so that the signal level becomes close to a reference level, and then a level shifter ( 182 ) complements the noise signal whose level was shifted by the level shifter ( 181 ) by a signal level corresponding to the level shifted by the level shifter ( 181 ). After that, the differential amplifier ( 183 ) performs subtraction operation between the noise signal that has passed the level shifters ( 181, 182 ) and the image signal from the pixel, so as to output the image signal without noises.