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A comparison of semiconductor controlled sources for the design of active rc impedances
Author(s) -
Brugger U. W.,
Leuenberger R.,
Hosticka B. J.,
Moschytz G. S.
Publication year - 1982
Publication title -
international journal of circuit theory and applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.364
H-Index - 52
eISSN - 1097-007X
pISSN - 0098-9886
DOI - 10.1002/cta.4490100104
Subject(s) - operational amplifier , operational transconductance amplifier , electronic engineering , transconductance , electrical impedance , monte carlo method , active filter , amplifier , filter (signal processing) , rc circuit , engineering , electrical engineering , mathematics , voltage , cmos , capacitor , transistor , statistics
Abstract A feasibility study of the four types of controlled sources realized in bipolar form is undertaken. The results are used in designing a PCM lowpass filter of which the total amplitude variance due to passive and active non‐idealities is minimized. The circuit yield is determined using Monte Carlo simulation. For this particular application, a comparison shows preferable behaviour using transimmitances (e.g. operational transconductance amplifiers) than using gain elements such as the opamp.