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. 26, 2013

Filed:

Mar. 08, 2010
Applicants:

Saeed Abbasi, Valley Forge, PA (US);

Nima Gilanpour, North York, CA;

Vincent Law, Richmond Hill, CA;

Inventors:

Saeed Abbasi, Valley Forge, PA (US);

Nima Gilanpour, North York, CA;

Vincent Law, Richmond Hill, CA;

Assignees:

Advanced Micro Devices, Inc., Sunnyvale, CA (US);

ATI Technologies ULC, Markham, Ontario, CA;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/45 (2006.01);
U.S. Cl.
CPC ...
Abstract

An amplifier circuit includes a first stage and a second stage. The first stage includes a differential input circuit coupled to a differential input node. The first stage includes a first partial cascode circuit including devices of a first type, the first partial cascode circuit being coupled to a first power supply node, a first bias node, and the differential input stage. The first stage includes a second partial cascode circuit including devices of a second type, the second partial cascode circuit being coupled to a second power supply node and the differential input circuit. The second stage is coupled to the first stage. The second stage includes a first full cascode circuit coupled to an output node.


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