Title :
Explicit formula for harmonic distortion in SC filters with weakly nonlinear capacitors
Author :
Schneider, M.C. ; Galup-Montoro, C. ; Bermudez, J.C.M.
Author_Institution :
Dept. of Electr. Eng., Univ. Federal de Santa Catarina, Florianapolis, Brazil
fDate :
12/1/1994 12:00:00 AM
Abstract :
An explicit formula is derived for harmonic distortion as a function of the capacitance nonlinearities and of the transfer function of the same filter implemented with linear capacitors. Application of the proposed formula to SC filters with capacitors implemented by MOSFET gates shows that harmonic distortions as low as -40 to -60 dB can be obtained
Keywords :
MOS analogue integrated circuits; capacitors; harmonic distortion; network analysis; switched capacitor filters; transfer functions; MOSFET gates; SC filters; capacitance nonlinearities; harmonic distortion; transfer function; weakly nonlinear capacitors;
Journal_Title :
Circuits, Devices and Systems, IEE Proceedings -
DOI :
10.1049/ip-cds:19941447
