Voltage differencing transconductance amplifier based resistorless and electronically tunable wave active filter

This paper presents a systematic approach for the realization of resistorless wave active filter using voltage differencing transconductance amplifier. The proposed filter uses grounded capacitor and also possesses electronic tunability of cut-off frequency via bias current. The functionality of the proposed filter is verified for a 4th order low pass filter through PSPICE simulation using 0.18 µm TSMC CMOS technology parameter. Experimental results using commercially available IC LM13700/NS are also included which corroborate the theoretical and simulated results.

[1]  Worapong Tangsrirat,et al.  Voltage differencing transconductance amplifier-based floating simulators with a single grounded capacitor , 2014 .

[2]  I. Haritantis,et al.  Wave active filters , 1976 .

[3]  Neeta Pandey,et al.  Current Controlled Differential Difference Current Conveyor Transconductance Amplifier and Its Application as Wave Active Filter , 2013 .

[4]  Chris Toumazou,et al.  A 5th order lowpass current mode wave active filter in CMOS technology , 1995 .

[5]  Yongan Li.  A series of new circuits based on CFTAs , 2012 .

[6]  Roman Sotner,et al.  New Compact VM Four-Phase Oscillator Employing Only Single Z-Copy VDTA and All Grounded Passive Elements , 2013 .

[7]  Worapong Tangsrirat,et al.  Compact VDTA-based current-mode electronically tunable universal filters using grounded capacitors , 2014, Microelectron. J..

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

[9]  Sajal K. Paul,et al.  Operational Trans-Resistance Amplifier Based Tunable Wave Active Filter , 2013 .

[10]  Hakan Kuntman,et al.  New Simple CMOS Realization of Voltage Differencing Transconductance Amplifier and Its RF Filter Application , 2011 .

[11]  Data Ram Bhaskar,et al.  Universal voltage-mode biquad filter using voltage differencing transconductance amplifier , 2016 .

[12]  Dinesh Prasad,et al.  VDTA-Based Wave Active Filter , 2014 .

[13]  Norbert Herencsar,et al.  Novel Floating General Element Simulators Using CBTA , 2012 .

[14]  Data Ram Bhaskar,et al.  Electronically Controllable Fully-Uncoupled Explicit Current-Mode Quadrature Oscillator Using VDTAs and Grounded Capacitors , 2013 .

[15]  Neeta Pandey,et al.  Realization of Resistorless Wave Active Filter using Differential Voltage Current Controlled Conveyor Transconductance Amplifier , 2011 .

[16]  H. Wupper,et al.  New Active Filter synthesis based on Scattering Parameters , 1975 .

[17]  Jan Jerabek,et al.  Linearly tunable quadrature oscillator derived from LC Colpitts structure using voltage differencing transconductance amplifier and adjustable current amplifier , 2014 .

[18]  D. Prasad,et al.  Electronically Controllable Explicit Current Output Sinusoidal Oscillator Employing Single VDTA , 2012 .

[19]  Data Ram Bhaskar,et al.  Grounded and Floating Inductance Simulation Circuits Using VDTAs , 2012 .

[20]  Witthaya Mekhum,et al.  Three Input Single Output Voltage-Mode Multifunction Filter with Independent Control of Pole Frequency and Quality Factor , 2013 .

[21]  Neeta Pandey,et al.  Differential Voltage current conveyor transconductance amplifier based wave active filter , 2011, 2011 International Conference on Multimedia, Signal Processing and Communication Technologies.