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:
Sep. 21, 2021

Filed:

Dec. 18, 2019
Applicant:

Nxp Usa, Inc., Austin, TX (US);

Inventors:

Elie A. Maalouf, Mesa, AZ (US);

Yu-Ting David Wu, Schaumburg, IL (US);

Lu Wang, Chandler, AZ (US);

Nick Yang, Wilmette, IL (US);

Assignee:

NXP USA, Inc., Austin, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/191 (2006.01); H03F 3/213 (2006.01); H01L 23/66 (2006.01); H03F 1/02 (2006.01); H03F 1/56 (2006.01); H03F 3/195 (2006.01); H04B 1/04 (2006.01);
U.S. Cl.
CPC ...
H03F 3/213 (2013.01); H01L 23/66 (2013.01); H03F 1/0227 (2013.01); H03F 1/0288 (2013.01); H03F 1/565 (2013.01); H03F 3/195 (2013.01); H04B 1/04 (2013.01); H01L 2223/665 (2013.01); H01L 2223/6611 (2013.01); H01L 2223/6655 (2013.01); H03F 2200/222 (2013.01); H03F 2200/318 (2013.01); H03F 2200/411 (2013.01); H03F 2200/451 (2013.01);
Abstract

An amplifier includes a driver stage amplifier transistor and a final stage amplifier transistor, which are integrated in a semiconductor die. The driver stage amplifier transistor has a driver stage input, a driver stage output, and an output impedance, and the driver stage amplifier transistor is configured to operate using a first bias voltage at the driver stage output. The final stage amplifier transistor has a final stage input, a final stage output, and an input impedance. The final stage input is electrically coupled to the driver stage output. The final stage amplifier transistor is configured to operate using a second bias voltage at the final stage output, and the second bias voltage is at least twice as large as the first bias voltage.


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