Title :
Current-mode ladder filters using multiple output current conveyors
Author :
Wu, J. ; El-Masry, E.
Author_Institution :
Dept. of Electr. Eng., Hunan Univ., Changsha, China
fDate :
8/1/1996 12:00:00 AM
Abstract :
A methodology to design continuous-time current-mode filters using current conveyors is presented. A multiple output current conveyor (MOCC), which contains both the positive and the negative outputs, is introduced. Based on the simulation of the passive RLC ladder prototypes, current-mode ladder filters using MOCCs are obtained. Designs show that the MOCC-based circuits can reduce the number of active components by 50%. A fifth-order all-pole lowpass ladder filter, with 1 MHz passband frequency, 0.5dB ripple, and a third-order elliptic lowpass ladder filter, with 2.4 MHz passband frequency and 0.1773 dB ripple, are designed and simulated
Keywords :
SPICE; circuit CAD; current conveyors; digital simulation; ladder filters; low-pass filters; network synthesis; 0.1773 dB; 0.5 dB; 1 MHz; 2.4 MHz; active component; all-pole low-pass ladder filter; continuous-time current-mode filters; current-mode ladder filters; multiple output current conveyors; negative outputs; passband frequency; passive RLC ladder prototype; positive outputs; simulation; third-order elliptic filter;
Journal_Title :
Circuits, Devices and Systems, IEE Proceedings -
DOI :
10.1049/ip-cds:19960490
