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:
Mar. 23, 2004
Filed:
Jun. 03, 2002
Applicant:
Inventors:
Fabio Braz, Caen, FR;
Patrick Leclerc, Langrune sur Mer, FR;
Lionel Guiraud, Saint Aubin sur Mer, FR;
Assignee:
Koninklijke Philips Electronics N.V., Eindhoven, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/45 ;
U.S. Cl.
CPC ...
H03F 3/45 ;
Abstract
The present invention relates to an amplifier CD including a first and a second transistor T and T , connected in series between a power supply terminal VCC and ground terminal. According to the invention the transfer terminal of the first transistor T is connected to the bias terminal of the second transistor T and forms an input of the amplifier CD, the bias terminal of the first transistor T being connected to a reference potential terminal. An amplifier CD in accordance with the invention has low input impedance and a low common-mode output level.