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:
Jan. 04, 2022
Filed:
Mar. 14, 2018
Applicant:
Xiamen Ux High-speed Ic Co., Ltd., Fujian, CN;
Inventors:
Assignee:
XIAMEN UX HIGH-SPEED IC CO., LTD., Fujian, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/08 (2006.01); H03F 3/45 (2006.01);
U.S. Cl.
CPC ...
H03F 3/45183 (2013.01); H03F 3/08 (2013.01);
Abstract
A circuit for increasing an output direct-current level of a transimpedance amplification stage in a TIA (Trans-Impedance Amplifier) includes a transimpedance amplification stage, a differential amplification stage, a level boosting unit, and a DC-restore loop. An input terminal of the transimpedance amplification stage is used for inputting a photocurrent signal. An output terminal of the transimpedance amplification stage is directly connected to an input terminal of the differential amplification stage.