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:
Sep. 15, 1998
Filed:
Feb. 24, 1997
Applicant:
Inventors:
James Chloupek, Plano, TX (US);
Henry Tin-Hang Yung, Richardson, TX (US);
Steve Wiyi Yang, Plano, TX (US);
Assignee:
Texas Instruments Incorporated, Dallas, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
H03M / ;
U.S. Cl.
CPC ...
341144 ; 341153 ;
Abstract
A digital-to-analog converter includes a first array of resistors 10-16 connected in series; a switch matrix 20 coupled to the first array of resistors 10-16; a first variable resistor RTOP coupled to a first end of the first array of resistors 10-16; and a second variable resistor RBOT coupled to a second end of the first array of resistors 10-16, the first variable resistor RTOP and the second variable resistor RBOT having a combined resistance that is a fixed resistance value.