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:
May. 03, 2022
Filed:
Nov. 05, 2020
Samsung Electronics Co., Ltd., Suwon-si, KR;
Kyunghoon Chung, Hwaseong-si, KR;
Jaesung Kang, Hwaseong-si, KR;
Jihyun Lee, Gwangmyeong-si, KR;
Jeongwoo Lim, Hwaseong-si, KR;
Yunseok Jang, Anyang-si, KR;
Jaewon Choi, Paju-si, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
Abstract
An operational amplifier includes an input stage with a first main input unit, a first auxiliary input unit, a second main input unit and a second auxiliary input unit, an amplification stage with a first current mirror receiving currents from the first main input unit and the first auxiliary input unit, and a second current mirror receiving currents from the second main input unit and the second auxiliary input unit, an output stage receiving voltages from the first current mirror and the second current mirror, a voltage storage unit storing an intermediate voltage based on an output signal generated by the output stage during at least one of a first operation period and a second operation period, and a switching unit that differently controls a first feedback path between the output stage and the input stage and a second feedback path between the output stage to the voltage storage unit in accordance with the first operation period and the second operation period.