Solid-state imaging element

Abstract

Provided is a solid-state imaging element capable of thinning out the number of operations of AD conversion units while suppressing an influence of a noise component on the AD conversion units of other columns. A solid-state imaging element according to the present embodiment includes: a plurality of comparators that is provided corresponding to a plurality of pixel columns each including an array of a plurality of pixels that photoelectrically converts light and outputs a pixel signal, and compares the pixel signal with a reference signal; a reference signal generation unit that generates a common reference signal used to generate the reference signal, and a plurality of input circuits respectively corresponding to the plurality of pixel columns and provided between the plurality of comparators and the reference signal generation unit; a common input wiring through which the common reference signal is input to the plurality of input circuits; and a common output wiring that outputs the reference signal from the plurality of input circuits to the plurality of comparators, in which each of the plurality of input circuits includes: a first transistor having a gate connected to the common input wiring; and a first switch connected between a source of the first transistor and the common output wiring.