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:
Dec. 16, 2008
Filed:
May. 21, 2007
Vadim V. Ivanov, Tucson, AZ (US);
Ralph G. Oberhuber, Plano, TX (US);
Vadim V. Ivanov, Tucson, AZ (US);
Ralph G. Oberhuber, Plano, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A class AB output stage includes first (M) and a second (M) output transistors having sources coupled to first (V) and second reference voltages, respectively, drains coupled to an output (), and gates coupled to first (A) and second (A) conductors, respectively. Portions of first (I) and a second (I) input currents are sourced via a first input conductor () and a second input conductor (), respectively, into and from sources of first (M) and second (M) transistors, respectively. Gates of the first (M) and second (M) transistors are coupled to the first and second conductors, respectively. First (V) and second (V) bias voltages are applied to gates of third (M) and fourth (M) transistors respectively, having sources coupled to the first and second input conductors, respectively, and drains coupled to the second conductor.