公开(公告)号：EP1728320A4

公开(公告)日：2007-07-18

申请号：EP05712099

申请日：2005-01-26

申请人： FREESCALE SEMICONDUCTOR INC

发明人： KRVAVAC ENVER ,  MITZLAFF JAMES E ,  VAN HORN MARK I

IPC分类号： H03F3/04 ,  H03F1/02 ,  H03F1/07 ,  H03F1/30 ,  H03F3/02

CPC分类号： H03F1/0288 ,  H03F1/301 ,  H03F3/04 ,  H03F2200/18 ,  H03F2200/366 ,  H03F2200/75

摘要： Apparatus and methods are described for biasing amplifiers with multiple outputs. A semiconductor die (100) may include a reference Field Effect Transistor (FET) (112) integrated on the semiconductor die and coupled to an amplifier (116) integrated on the semiconductor die. A voltage offset circuit (114) may also be integrated on the semiconductor die (100) for determining the voltage needed to operate the amplifier (116).