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:
Oct. 30, 2012
Filed:
Feb. 04, 2010
Min Ho Kwon, Seoul, KR;
Seog Heon Ham, Suwon-si, KR;
Dong Hun Lee, Yongin-si, KR;
Kwi Sung Yoo, Seoul, KR;
Wun-ki Jung, Suwon-si, KR;
Min Ho Kwon, Seoul, KR;
Seog Heon Ham, Suwon-si, KR;
Dong Hun Lee, Yongin-si, KR;
Kwi Sung Yoo, Seoul, KR;
Wun-Ki Jung, Suwon-si, KR;
Samsung Electronics Co., Ltd., Gyeonggi-do, KR;
Abstract
A two-path sigma-delta analog-to-digital converter and an image sensor including the same are provided. The two-path sigma-delta analog-to-digital converter includes at least one integrator configured to integrate a first integrator input signal during a second half cycle of a clock signal and integrate a second integrator input signal during a first half cycle of the clock signal by using a single operational amplifier; a quantizer configured to quantize integrated signals from the at least one integrator and output a first digital signal and a second digital signal; and a feedback loop configured to feed back the first and second digital signals to an input of the at least one integrator. A first analog signal and a second analog signal respectively input from two input paths are respectively converted to the first and second digital signals using the single operational amplifier, thereby increasing power efficiency and reducing an area.