A/D CONVERSION CIRCUIT, SOLID-STATE IMAGE SENSOR, AND CAMERA SYSTEM

摘要

An A/D conversion circuit in which a counter is made to be capable of performing counting at both edges of a clock, up/down count values can be switched while the up/down count values are held, and the duty of the counting operation is difficult to be distorted even with the both-edge counting, a solid-state image sensor, and a camera system.