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:
Mar. 18, 2003
Filed:
Dec. 03, 2001
Applicant:
Inventors:
Assignee:
Texas Instruments Incorporated, Dallas, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/18 ;
U.S. Cl.
CPC ...
H03F 3/18 ;
Abstract
The present invention provides technical advantages as a class AB output driver ( ) with minimal cross-over distortion. If the differential input to the driver is I+&dgr;I/2 and I−&dgr;I/2, then the current gain is the average of &bgr; and &bgr; , more specifically, (&bgr; −&bgr; )*I+((&bgr; +&bgr; )/2)* &dgr;I. The offset current (&bgr; −&bgr; )*I is taken out with a feedback loop.