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Indian Journal of Pure & Applied Physics (IJPAP) >
IJPAP Vol.42 [2004] >
IJPAP Vol.42(05) [May 2004] >
| Title: | Current-mode universal filter using current feedback amplifiers |
| Authors: | Shah, N A
Rather, M F
Iqbal, S Z |
| Keywords: | Current-mode filters
Universal filters |
| Issue Date: | May-2004 |
| Publisher: | CSIR |
| IPC Code: | H 03 H 7/075 |
| Abstract: | A new current-mode (CM) universal filter based on and
employing three each of non-inverting current feedback amplifiers (CFAs),
capacitors, and resistors is presented. Without changing the circuit topology
the output currents simultaneously supports lowpass (LP), highpass (HP), and
bandpass (BP) responses. The notch (BR) and allpass (AP) filtering functions
can be achieved by connecting the appropriate nodes without requiring the use
of additional components. The proposed circuit enjoys low passive sensitivities
and orthogonal tuning of the parameters natural frequency,ω0 and
quality factor, Q. Personal
computer-simulation programme with integrated circuit emphasis (PSPICE)
simulated results agree well with calculated values. |
| Page(s): | 375-377 |
| ISSN: | 0975-1041 (Online); 0019-5596 (Print) |
| Source: | IJPAP Vol.42(05) [May 2004]
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