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Multiple-input single-output current-mode multifunction filter using current differencing transconductance amplifiers
DOI:10.1016/j.aeue.2006.04.004.png)
Abstract
En 中文
A novel current-controlled multiple-input single-output current-mode universal filter employing current differencing transconductance amplifiers (CDTAs) as active elements is described. The proposed circuit offers the following attractive features: employment of the minimum number of active and passive components; simultaneous realization of all the standard filtering functions; independent current-control of the parameters omega(0) and omega(0)/Q; no requirement of component matching conditions; employment of only two grounded passive capacitors which is suitable for integrated circuit (IC) implementation; and low passive and active sensitivities. PSPICE simulation results are given to verify the theoretical analysis. An example application using the proposed circuit in cascade realization of the high-order current-mode filter is also presented. (c) 2006 Elsevier GmbH. All rights reserved.
Keywords:
current differencing transconductance amplifier (CDTA)
current differencing buffered amplifier (CDBA)
multifunction filter
current-mode circuits
Journal
A
IF:
3.2
Papers:
5.8K
Citations:
8.3K
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