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Indian Journal of Engineering and Materials Sciences (IJEMS) >
IJEMS Vol.12 [2005] >
IJEMS Vol.12(4) [August 2005] >
| Title: | High input impedance voltage-mode lowpass, bandpass, highpass and notch filter using current feedback amplifiers |
| Authors: | Shah, N A
Malik, M A |
| Issue Date: | Aug-2005 |
| Publisher: | CSIR |
| IPC Code: | H03F3/00, H03H3/00 |
| Abstract: | The paper presents a
new voltage-mode (VM) high input impedance filter having a single input and
four low impedance outputs. The proposed circuit employs four current feedback
amplifiers (CFAs) and six passive elements, four of them are grounded and
enjoys the following advantages: simultaneous realisation of lowpass (LP),
bandpass (BP), highpass (HP) and notch filtering functions explicitly,
cascadability, independent control of resonance frequency (w0) and bandwidth (w0/Q),
orthogonal control of resonance frequency (w0) and quality factor (Q), no requirements for component
matching conditions, use of two grounded capacitors which are ideal for IC
implementation and low passive sensitivity figures. Experimental and PSPICE
simulation results are given to verify the theoretical calculations. |
| Page(s): | 278-280 |
| ISSN: | 0975-1017 (Online); 0971-4588 (Print) |
| Source: | IJEMS Vol.12(4) [August 2005]
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