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IJPAP Vol.44(01) [January 2006] >


Title: Realization of multi-function biquad filter using operational transconductance amplifier
Authors: Kumar, K
Pal, K
Gupta, G K
Keywords: Voltage mode
Multi-function filter
Operational transconductance amplifier
Active Filter
Issue Date: Jan-2006
Publisher: CSIR
IPC CodeH03H
Abstract: A configuration of voltage mode (VM) multi-function biquad filters (MBF) is presented in this paper. The configuration (MBF) is implemented by using two OTAs (one dual output and other single output) and two capacitors. It realises all standard filtering functions i.e. low pass (LP), high pass (HP), band pass (BP), notch and all pass (AP). This configuration (MBF) can also be constructed using a single OTA, two capacitors and one resistor. It employs minimum of active and passive components and provides an attractive feature in case of BP filter that it can be designed for high Q. In addition, the circuit enjoy low sensitivity performance. The experimental results that confirm the validity of the circuit are included.
Page(s): 71-74
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Source:IJPAP Vol.44(01) [January 2006]

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