The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 11, 2023
Filed:
Sep. 09, 2021
Samsung Electronics Co., Ltd., Suwon-si, KR;
Daehwa Paik, Seoul, KR;
Jaehong Kim, Suwon-si, KR;
Jinwoo Kim, Seoul, KR;
Seunghyun Lim, Hwaseong-si, KR;
Sanghyun Cho, Hwaseong-si, KR;
SAMSUNG ELECTRONICS CO., LTD., Suwon-si, KR;
Abstract
An A/D converter and an image sensor are disclosed. The image sensor includes: a pixel array including a plurality of pixels; a ramp signal generator configured to generate a ramp signal; and a comparison circuit configured to output a comparison result signal by comparing a pixel signal output by the pixel array with the ramp signal. The comparison circuit includes: a first comparator stage configured to output a first stage output signal according to a result of comparing the pixel signal with the ramp signal, to a first circuit node; a limiter including an n-type transistor having one end connected to the first circuit node and an opposite end to which power supply voltage is applied; and a second comparator stage configured to generate the comparison result signal by shaping the first stage output signal.