TITLE:
Voltage/Current-Mode Multifunction Filters Using One Current Feedback Amplifier and Grounded Capacitors
AUTHORS:
Jiun-Wei Horng, Chun-Li Hou, Wei-Shyang Huang, Dun-Yih Yang
KEYWORDS:
Current Feedback Amplifier, Active Filter, Voltage-Mode, Current-Mode
JOURNAL NAME:
Circuits and Systems,
Vol.2 No.2,
March
28,
2011
ABSTRACT: One configuration for realizing voltage-mode multifunction filters and another configuration for realizing current-mode multifunction filters using current feedback amplifiers (CFAs) are presented. The proposed voltage-mode circuit exhibit simultaneously lowpass and bandpass filters. The proposed current-mode circuit exhibit simultaneously lowpass, bandpass and highpass filters. The proposed circuits offer the following features: no requirements for component matching conditions; low active and passive sensitivities; employing only grounded capacitors and the ability to obtain multifunction filters from the same circuit configuration.