Image sensor, camera assembly, and mobile terminal

Abstract

An image sensor includes: a pixel array, the pixel array including a plurality of pixels, and each pixel including a plurality of sub-pixels, wherein the sub-pixels in a same pixel share a same floating diffusion region (FD); each pixel including a pixel circuit provided with a plurality of output ends, and the pixel circuit being used for transferring charges generated by at least one photoelectric conversion element in a same pixel to the FD for accumulation, and selecting at least one output end to output analog signals corresponding to the charges in the FD; and a plurality of first conversion circuits, each first conversion circuits being used for performing analog-to-digital conversion on each analog signal outputted by a same pixel circuit, and reading a converted digital signal together with the pixel circuit on the basis of a full-resolution output mode or a first-stage combined output mode.