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Title:  Current-mode lowpass, bandpass and highpass biquads using a single current feedback amplifier
Authors: Shah, N A
Rather, M F
Iqbal, S Z
Keywords: Current feedback amplifier;Biquads;Current-mode lowpass
Issue Date: Sep-2004
Publisher: CSIR
IPC Code: H 03 K 3/00
Abstract:  A novel current-mode second-order filtering configuration employing an inverting current feedback amplifier (CFA) and four passive elements is presented. The circuit can realize simultaneously lowpass (LP) and bandpass (BP) functions. The circuit supports realisation of highpass (HP) and bandpass (BP) filtering responses as well through RC : CR transformation. All passive sensitivities are low. The circuit has been simulated using Personal Computer-Simulation Programme with Integrated Circuit Emphasis (PSPICE) and simulation results are found to be in close conformity with the theoretical values.
Page(s): 697-699
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Appears in Collections:IJPAP Vol.42(09) [September 2004]

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