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:
Jun. 07, 2022
Filed:
Mar. 04, 2021
Applicant:
Texas Instruments Incorporated, Dallas, TX (US);
Inventor:
Binan Wang, Tucson, AZ (US);
Assignee:
TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
H03M 1/78 (2006.01); H03M 1/10 (2006.01); H03M 1/68 (2006.01);
U.S. Cl.
CPC ...
H03M 1/785 (2013.01); H03M 1/1061 (2013.01); H03M 1/68 (2013.01);
Abstract
In some examples, a system includes an integrated circuit comprising a transistor, a first amplifier coupled to the transistor, a second amplifier having an output and coupled to the transistor and the first amplifier, and an R-2R resistor ladder having multiple rungs. Each rung is switchably coupled to a terminal of the transistor and to the output of the second amplifier. The R-2R resistor ladder includes a resistor coupled to either the transistor or the output of the second amplifier.