Patent ID: 9661249
Date: 2017-05-23
CPC Classifications: H04N

Claim:
1. An image capturing apparatus, comprising: a plurality of pixels arranged in a matrix form, each of the pixels outputting a signal from a photoelectric conversion element; and a plurality of readout circuits each provided for a corresponding column of the pixels, signals from the pixels being input to the readout circuits, wherein at least one of the readout circuits includes wherein, at a time when the variable gain of the amplifier unit is a first gain and the sampling switch is changed from an off state into an on state, the variable capacitance value of the hold capacitance is a first capacitance value and, at a time when the variable gain of the amplifier unit is a second gain larger than the first gain and the sampling switch is changed from the off state into the on state, the variable capacitance value of the hold capacitance is a second capacitance value smaller than the first capacitance value.