Solid-state imaging device

A solid-state imaging device according to an aspect of the present invention includes: an imaging area including a plurality of pixels arranged in rows and columns, each of the plurality of pixels converting incident light into a pixel signal; a column signal line provided for each of the columns, for reading out the pixel signal; and a current source connected to the column signal line, in which the current source includes: three transistors connected in series and provided between the column signal line and a GND line; and a transistor having a drain and a source each of which is connected to a different one of connection points connecting adjacent ones of the three transistors.