Invention Grant
- Patent Title: Comparing circuit and an image sensor including a current stabilization circuit
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Application No.: US15910532Application Date: 2018-03-02
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Publication No.: US10694131B2Publication Date: 2020-06-23
- Inventor: Yunhwan Jung , Sunyool Kang , Jaehong Kim
- Applicant: SAMSUNG ELECTRONICS CO., LTD.
- Applicant Address: KR Suwon-si, Gyeonggi-Do
- Assignee: SAMSUNG ELECTRONICS CO., LTD.
- Current Assignee: SAMSUNG ELECTRONICS CO., LTD.
- Current Assignee Address: KR Suwon-si, Gyeonggi-Do
- Agency: F. Chau & Associates, LLC
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@6dd1bc9
- Main IPC: H04N5/378
- IPC: H04N5/378 ; H04N5/369 ; H04N5/357 ; H04N5/3745 ; H04N5/376
Abstract:
A comparing circuit may include a first amplifier and a second amplifier. The first amplifier performs a correlated double sampling operation in response to a pixel signal and a ramp signal, and the second amplifier amplifies an output signal of the first amplifier. The second amplifier includes a current stabilization circuit that supplies current to the second amplifier during the correlated double sampling operation irrespective of the output signal of the first amplifier.
Public/Granted literature
- US20180191977A1 COMPARING CIRCUIT AND AN IMAGE SENSOR INCLUDING A CURRENT STABILIZATION CIRCUIT Public/Granted day:2018-07-05
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