Title :
Offset-compensated bilinear SC filter of leapfrog type using a two-phase clock
Author :
Eriksson, Sandra
Author_Institution :
Linköping University, Department of Electrical Engineering, Linköping, Sweden
Abstract :
A bilinear switched-capacitor filter realisation of leapfrog type is proposed, which is compensated for the DC offset voltage of the amplifiers. By using offset-compensated integrators in combination with unity-gain buffers, a filter can be realised which operates with a two-phase clock. The realisation is parasitic-insensitive.
Keywords :
active filters; compensation; switched capacitor filters; DC offset voltage; active filters; bilinear switched-capacitor filter; leapfrog type; offset-compensated integrators; operational amplifiers; parasitic-insensitive; two-phase clock; unity-gain buffers;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19850740
