Realization of eighth order current mode Butterworth characteristics using Multioutput Operational Floating conveyors and grounded components

This paper presents an active realization of an eighth order current mode Butterworth filter function using Multioutput Operational Floating conveyors (MOOFCs) and grounded passive components. The proposed realization is based on cascading a new low component single input multi output (SIMO) current mode universal biquadratic filter (UBF). The UBF is constructed employing only two MOOFCs, four grounded components, that lead to simple structure, easy to design and suitable for IC fabrication. The proposed UBF can realize all standard biquadratic responses without any matching conditions and has current outputs at a high impedance terminal, which enable easy cascadablity. The proposed filter has the advantages of minimum requirement of active and passive component count, low sensitivity, and high performance. The performance of the filter is verified through PSPICE simulation using low supply voltage of 0.75 volts.

[1]  G. G. Stokes.  "J." , 1890, The New Yale Book of Quotations.

[2]  Y.H. Ghallab,et al.  A novel universal voltage-mode filter with three inputs and single output using only two operational floating current conveyor , 2000, ICM 2000. Proceedings of the 12th International Conference on Microelectronics. (IEEE Cat. No.00EX453).

[3]  Chun-Ming Chang,et al.  Universal current filter with single input and three outputs using MOCCIIs , 2007 .

[4]  M. E. Valkenburg,et al.  Design of Analog Filters , 2001 .

[5]  Shahram Minaei,et al.  Universal Current-Mode Active-C Filter Employing Minimum Number of Passive Elements , 2006 .

[6]  T. Parveen.  OFC based high output impedance current mode SIMO universal biquadratic filter , 2011, 2011 International Conference on Multimedia, Signal Processing and Communication Technologies.

[7]  Rajput S.S. and Jamuar S.S.,et al.  Advanced Applications of Current Conveyors: A Tutorial , 2007 .

[8]  K.V.I.S. Kaler,et al.  A new second-order active universal filter with single input and three outputs using operational floating current conveyor , 2002, The 14th International Conference on Microelectronics,.

[9]  Ching-Ting Lee,et al.  Versatile insensitive current-mode universal biquad implementation using current conveyors , 2001 .

[11]  Kamil Vrba,et al.  Tunable Current-Mode Multifunction Filter Using Universal Current Conveyors , 2008, Third International Conference on Systems (icons 2008).

[12]  Neeta Pandey,et al.  Single-Input Four-Output Current Mode Filter Using Operational Floating Current Conveyor , 2013 .