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.

Date of Patent:
Aug. 22, 2023

Filed:

Feb. 16, 2021
Applicant:

Qualcomm Incorporated, San Diego, CA (US);

Inventors:

Joung Won Park, Bellevue, WA (US);

Wei Zhuo, San Diego, CA (US);

Li-chung Chang, Hillsboro, OR (US);

Assignee:

QUALCOMM Incorporated, San Diego, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/45 (2006.01); H03F 3/19 (2006.01); H03F 1/32 (2006.01); H03F 1/26 (2006.01);
U.S. Cl.
CPC ...
H03F 3/45098 (2013.01); H03F 1/26 (2013.01); H03F 1/3211 (2013.01); H03F 3/19 (2013.01); H03F 2200/451 (2013.01);
Abstract

Certain aspects of the present disclosure provide methods and apparatus for amplifying an input signal. One example apparatus is a differential amplifier that includes a positive input node, a negative input node, a positive output node, a negative output node, a positive input transistor having a gate coupled to the positive input node and having a drain coupled to the negative output node, a negative input transistor having a gate coupled to the negative input node and having a drain coupled to the positive output node, a first common-gate amplifier having an output coupled to the negative output node, a second common-gate amplifier having an output coupled to the positive output node, a first capacitive element coupled between the negative input node and an input of the first common-gate amplifier, and a second capacitive element coupled between the positive input node and an input of the second common-gate amplifier.


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