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|Title:||Variable gain amplifier||Authors:||Hoo, Swee Chuen.||Keywords:||DRNTU::Engineering::Electrical and electronic engineering::Electronic circuits||Issue Date:||2005||Abstract:||A detailed study of various variable gain topologies is presented in this report. A Variable Gain Amplifier (VGA) with an exponential gain control characteristic is desired in Automatic Gain Control (AGC) application. Thus, a metal-oxidesemiconductor (MOS) variable gain amplifier with linear in dB characteristic was designed. The voltage gain or transconductor of the VGA can be varying by a control voltage. This amplifier, based on complementary MOS (CMOS) transistors operating in strong inversion, is composed of exponential voltage generator block, four quadrant analog multiplier and tranresistance output stage.||URI:||http://hdl.handle.net/10356/4375||Rights:||Nanyang Technological University||Fulltext Permission:||restricted||Fulltext Availability:||With Fulltext|
|Appears in Collections:||EEE Theses|
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