The imaging device includes a plurality of pixels arranged in a two-dimensional matrix, receiving light from the outside, generating and outputting an imaging signal corresponding to the amount of received light, a reference voltage generating unit generating a reference voltage, And a reference signal generation unit for generating and outputting a reference signal corresponding to the voltage.撮像素子は、二次元マトリクス状に配置され、外部から光を受光し、受光量に応じた撮像信号を生成して出力する複数の画素と、基準電圧を生成する基準電圧生成部と、前記基準電圧に応じた基準信号を生成して出力する基準信号生成部と、を備える。
