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:
Jan. 12, 1999
Filed:
Feb. 13, 1997
Applicant:
Inventors:
Henry Tin-Hang Yung, Richardson, TX (US);
Steve Wiyi Yang, Plano, TX (US);
Michael J Tsecouras, Carrolton, TX (US);
Assignee:
Texas Instruments Incorporated, Dallas, TX (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05F / ;
U.S. Cl.
CPC ...
327538 ; 327540 ; 327563 ;
Abstract
A voltage reference circuit includes: an amplifier A1 with low open loop output impedance, an output of the amplifier is coupled to a first input of the amplifier A1; and a first resistor R1 coupled between the output of the amplifier A1 and a reference node 30, the first resistor R1 has a resistance substantially equally to the low open loop output impedance, whereby a low frequency impedance at the reference node 30 is substantially equal to the resistance.