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:
Feb. 19, 2019

Filed:

Oct. 23, 2017
Applicant:

Globalfoundries Inc., Grand Cayman, KY;

Inventors:

Michael Chen, Raleigh, NC (US);

Steven M. Clements, Raleigh, NC (US);

Mohak Chhabra, Cary, NC (US);

Steven E. Mikes, Apex, NC (US);

Hayden C. Cranford, Jr., Cary, NC (US);

Assignee:

GLOBALFOUNDRIES INC., Grand Cayman, KY;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03F 1/06 (2006.01); H03F 1/48 (2006.01); H03F 3/68 (2006.01); H03F 3/191 (2006.01);
U.S. Cl.
CPC ...
H03F 1/486 (2013.01); H03F 3/191 (2013.01); H03F 3/68 (2013.01);
Abstract

A circuit including: input and output nodes and first and second feedback nodes; a first input amplifier having an input connected to the input node and an output connected to the first feedback node; a second input amplifier having an input connected to the input node and an output connected to the second feedback node; a capacitor connecting the first feedback node and the second feedback node; an amplifier having an input connected to the first feedback node and an output connected to the output node; a base feedback amplifier with an input connected to the output node and an output connected to the first feedback node; a tunable feedback amplifier with an input connected to the output node and an output connected to the second feedback node; and a tuning circuit for varying a transconductance of the tunable feedback circuit and operational frequency of the peaking amplifier circuit.


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