Title :
Systematic generation of transconductance based variable gain amplifier topologies
Author :
Klumperink, Eric A M ; van Tuijl, A.J.M.
Author_Institution :
MESA Res. Inst., Twente Univ., Enschede, Netherlands
Abstract :
A systematic method for the generation of variable gain amplifier topologies is proposed. The generation is based on voltage controlled current sources (VCCSs) modelling saturated MOS transistors, resistors or combinations of these elements. It is shown that many alternative circuit topologies can be generated, that would not easily have been found in an intuitive way. Simulation results shown that significant differences in performance occur, with various mixes of specific strong and weak points. The set of alternative topologies can be used as a circuit topology database for analogue CAD systems
Keywords :
CMOS analogue integrated circuits; amplifiers; network topology; CMOS circuit; analogue CAD; circuit topology; resistor; saturated MOS transistor; simulation; transconductance; variable gain amplifier; voltage controlled current source model; Circuit simulation; Circuit synthesis; Circuit topology; Design automation; Gain; Graph theory; MOSFETs; Resistors; Transconductance; Voltage control;
Conference_Titel :
Circuits and Systems, 1998. ISCAS '98. Proceedings of the 1998 IEEE International Symposium on
Conference_Location :
Monterey, CA
Print_ISBN :
0-7803-4455-3
DOI :
10.1109/ISCAS.1998.704418
