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:
Apr. 16, 2002
Filed:
Jun. 30, 2000
Applicant:
Inventor:
Siegfried Ganser, Markt Schwaben, DE;
Assignee:
Infineon Technologies AG, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/45 ;
U.S. Cl.
CPC ...
H03F 3/45 ;
Abstract
An integrated circuit (IC) differential amplifier is disclosed. The differential amplifier comprises two amplifier stages each containing a transistor amplifier stage connected to one of the inputs of a push-pull input (RF , RFX ) and a cascode stage connected to one of the outputs of a push-pull output (RF , RFX ), where the cascode stages can be switched by a changeover switch (DC gain switch).