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:
May. 06, 2008
Filed:
Sep. 20, 2006
Applicant:
Thomas Blon, Jengen, DE;
Inventor:
Thomas Blon, Jengen, DE;
Assignee:
National Semiconductor Germany AG, Unterhaching, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 1/36 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a circuit configuration () having a feedback operational amplifier (AMP) for amplifying an input signal (Vin) input into the circuit arrangement () and outputting the amplified input signal as an output signal (Vout). In order to be able to change the circuit amplification (Vout/Vin) easily and reliably in the circuit configuration () and simultaneously keep an impairment of the output signal (Vout) caused by noise relatively low, capacitance values (Cb, C) of the coupling path () and of the feedback path () are adjusted simultaneously to one another correlated in a special way.