DB-linear variable gain amplifier (VGA) stage with a high...

Details DB-linear variable gain amplifier (VGA) stage with a high... DB-linear variable gain amplifier (VGA) stage with a high...

2007-04-24

2007-04-24

Nguyen, Patricia (Department: 2817)

Amplifiers

With semiconductor amplifying device

Including differential amplifier

C330S086000, C330S009000

Reexamination Certificate

active

10478452

ABSTRACT:
The invention relates to a VGA stage having a novel circuit configuration for amplifying/attenuating a differential input signal which is transmitted via a transmission line (H). The VGA stage comprises an operational amplifier (OPV1, OPV2), which is connected as shunt feedback, for amplifying the input signal; a string of resistors (R01, R01′) for attenuating the signal; and a control device (2) for switching the string of resistors (R01, R01′).

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