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:
Mar. 01, 2022
Filed:
Aug. 14, 2020
Elite Semiconductor Microelectronics Technology Inc., Hsinchu, TW;
Cheng-Hung Tsai, Hsinchu, TW;
Chien-Yi Chang, Hsinchu, TW;
ELITE SEMICONDUCTOR MICROELECTRONICS TECHNOLOGY INC., Hsinchu, TW;
Abstract
An input buffer circuit includes an input differential amplifier unit, a differential amplifier stage, and a buffer. The input differential amplifier unit has input terminals and at least one output terminal, wherein at least two of the input terminals of the input differential amplifier unit are configured to be capacitively coupled respectively so as to provide at least one pair of signal paths for a first input signal and a second input signal of a differential input signal. The differential amplifier stage, coupled to the input differential amplifier unit, has first and second differential input terminals, and a corresponding output terminal, wherein the first and second differential input terminals are capable of being coupled to the first input signal and the second input signal respectively. The buffer, coupled to the output terminal of the differential amplifier stage, is used for outputting an output single-ended signal.