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Indian Journal of Pure & Applied Physics (IJPAP) >
IJPAP Vol.43 [2005] >
IJPAP Vol.43(08) [August 2005] >
| Title: | CFA-based three input and two outputs voltage-mode universal filter |
| Authors: | Shah, N A
Rather, M F
Iqbal, S Z |
| Keywords: | Current feedback amplifier
Voltage-mode filter |
| Issue Date: | Aug-2005 |
| Publisher: | CSIR |
| IPC Code: | H03K3/00 |
| Abstract: | A new voltage-mode
(VM) multifunction filter based on, employing two plus type current feedback
amplifiers (CFA) and as many capacitors, and three resistors with three inputs
and two outputs, is presented. The proposed configuration synthesize all the
generic filtering functions namely lowpass (LP), bandpass (BP), highpass (HP),
notch (BS) and allpass (AP) with two functions simultaneously, without
requiring the change to be induced in the passive elements and/or rotation of
components. The circuit enjoys the features of: orthogonal control of the
natural frequency and the quality factor, low impedance outputs suiting
cascadibility for higher order transfer functions, and low active and passive
sensitivities. The results of computer simulation using PSPICE are discussed. |
| Page(s): | 636-639 |
| ISSN: | 0975-1041 (Online); 0019-5596 (Print) |
| Source: | IJPAP Vol.43(08) [August 2005]
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