Image sensor, image capturing device and capacitance device

Abstract

An image sensor includes: a pixel that generates a pixel signal based upon incident light having entered therein; and a generation unit that includes a first input unit to which the pixel signal is input, a second input unit to which a first reference signal with a shifting voltage is input, and an output unit that outputs an output signal generated based upon the pixel signal and the first reference signal, wherein: the generation unit further includes a first capacitance disposed between the first input unit and the output unit, a second capacitance disposed between the second input unit and the output unit, and a third capacitance connected to either one of the first capacitance and the second capacitance.

1 . An image sensor, comprising;
 a photoelectric conversion unit that generates an electric charge by photoelectric conversion of light;   a first input unit to which a signal based upon the electric charge generated by the photoelectric conversion unit is input;   a second input unit to which a first reference signal with a shifting voltage is input;   an output unit that outputs a signal generated based upon the signal input to the first input unit and the first reference signal;   a first capacitance disposed between the first input unit and the output unit;   a second capacitance disposed between the second input unit and the output unit;   a third capacitance connected to the first capacitance or the second capacitance;   a first switch that connects the third capacitance to the first input unit; and   a second switch that connects the third capacitance to the second input unit.