Title :
Design consideration for lowering sensitivity to out of band interference of negative feedback amplifiers
Author :
Totev, E.D. ; Verhoeven, C.J.M.
Author_Institution :
Dept. of Electron., Delft Univ. of Technol., Netherlands
Abstract :
In this work, out of band electromagnetic interference (EMI) of frequency dependent negative feedback amplifiers is investigated. The occurrence of nonlinear behaviour is analysed and the place in an amplifier topology located, where its presence is most critical to EMI sensitivity. Recommendations are made regarding placement of linearized stages in a circuit so as to make use of frequency selectivity and loop gain to reduce susceptibility to out of band interference.
Keywords :
electromagnetic interference; feedback amplifiers; interference suppression; network topology; EMI; EMI sensitivity; amplifier topology; electromagnetic interference; frequency dependent negative feedback amplifiers; frequency selectivity; linearized stages; loop gain; nonlinear behaviour; out of band interference; sensitivity; Electromagnetic interference; Feedback amplifiers; Frequency dependence; Negative feedback; Negative feedback loops; Nonlinear distortion; Radio frequency; Signal design; Signal processing; Transfer functions;
Conference_Titel :
Circuits and Systems, 2005. ISCAS 2005. IEEE International Symposium on
Print_ISBN :
0-7803-8834-8
DOI :
10.1109/ISCAS.2005.1464908
