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:
Aug. 22, 2017
Filed:
Nov. 30, 2015
Applicant:
Silicon Laboratories Inc., Austin, TX (US);
Inventors:
Assignee:
Silicon Laboratories Inc., Austin, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
H03F 1/02 (2006.01); H03K 17/687 (2006.01); H03F 3/45 (2006.01);
U.S. Cl.
CPC ...
H03K 17/687 (2013.01); H03F 1/0205 (2013.01); H03F 3/45179 (2013.01); H03F 2203/45038 (2013.01);
Abstract
An apparatus includes a first field effect transistor (FET) that has a body and is coupled in a circuit. The apparatus also includes a second FET that has a body and is coupled in the circuit. The circuit has an offset because of a mismatch. The apparatus further includes an offset correction circuit coupled to the body of the first FET and to the body of the second FET. The offset correction circuit provides a first offset correction signal to the body of the first FET and provides a second offset correction signal to the body of the second FET.