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:
Feb. 18, 2014
Filed:
Sep. 16, 2011
Oliver Piepenstock, Hannover, DE;
Andreas Bock, Isernhagen, DE;
Bhavesh G. Bhakta, Richardson, TX (US);
Oliver Piepenstock, Hannover, DE;
Andreas Bock, Isernhagen, DE;
Bhavesh G. Bhakta, Richardson, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Texas Instruments Deutschland GmbH, Freising, DE;
Abstract
A buffer is provided. The buffer includes a first switch and a second switch coupled in series at a first output node, a third switch and a fourth switch coupled in series at a second output node, a first current source and a second current source. The first current source is coupled with one side to the first switch and the third switch and with another side to a first supply voltage, the second current source is coupled with one side to the second switch and the fourth switch and with a second side to a second supply voltage. The first current source is configured to adjust an output swing in a first operation mode and in a second operation. The second current source is configured to adjust a common mode voltage level of the output signal in the first operation mode and to provide maximum series resistance in the second operation mode.