The electronic device according to various examples comprises a power supply module and an image sensor, wherein the image sensor comprises: a pixel array including a plurality of pixels; an analog-digital converter, of a first group, for converting the amount of light acquired through the pixel array into a first digital signal; and an analog-digital converter of a second group, the analog-digital converter being adjacent to the first group and for converting power, supplied from the power supply module to the image sensor, into a second digital signal.