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:
Jul. 19, 2005
Filed:
Aug. 25, 2003
Applicants:
Jin-sheng Wang, Plano, TX (US);
Wenliang Chen, Plano, TX (US);
Inventors:
Jin-sheng Wang, Plano, TX (US);
Wenliang Chen, Plano, TX (US);
Assignee:
Texas Instruments Incorporated, Dallas, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
G05F001/10 ;
U.S. Cl.
CPC ...
Abstract
A temperature independent CMOS reference voltage circuit includes a CMOS current mirror circuit containing first and second CMOS transistors of a first polarity. A temperature compensation circuit is coupled to the CMOS current mirror circuit, and contains a first resistor, a second resistor, and third and fourth CMOS transistors of a second polarity. The third and fourth CMOS transistors are configured to operate substantially in a subthreshold region. One of the third and fourth CMOS transistors is diode connected.