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Active-C realization of nth-order current-mode allpole lowpass filters using CFTAs
Author(s)
Date Issued
January 1, 2012
Type
Conference Paper
Abstract
In this paper, a general synthesis procedure of using the signal flow graph technique to realize an n,h-order allpole lowpass current transfer function with current follower transconductance amplifiers (CFTAs) has been presented. The proposed circuit, in genera), contains at most n CFTAs and n grounded capacitors, without needing external passive resistors. It has been also shown that the design procedure given here is simple structure, convenient tunability, and suitable for integration. Furthermore, the circuit has low sensitivity. PSPICE simulation results which agree very well with the theoretical analysis are also included.
Citation
Lecture Notes in Engineering and Computer Science, 2196, 983-986, 2012