CS  Vol.4 No.1 , January 2013
Universal Current-Mode Biquad Filter Using a VDTA
ABSTRACT

This paper presents a new current-mode single input multi output (SIMO) type biquad employing one voltage differencing transconductance amplifier (VDTA), two grounded capacitors and a single grounded resistor. The configuration realizes all basic filter functions (i.e. Low Pass (LP), High Pass (HP), Band Pass (BP), Notch (BR) and All Pass (AP)). The natural frequency (ω0) and bandwidth (BW) are independently tunable. The workability of proposed configuration has been verified using SPICE simulation with TSMC CMOS 0.18 μm process parameters.


Cite this paper
D. Prasad, D. Bhaskar and M. Srivastava, "Universal Current-Mode Biquad Filter Using a VDTA," Circuits and Systems, Vol. 4 No. 1, 2013, pp. 29-33. doi: 10.4236/cs.2013.41006.
References
[1]   C. Toumazau, F. J. Lidgey and D. G. Haigh, “Analogue IC Design: The Current-Mode Approach,” Peter Peregrinus Limited, London, 1990.

[2]   D. Biolek, R. Senani, V. Biolkova and Z. Kolka, “Active Elements for Analog Signal Processing, Classification, Review and New Proposals,” Radioengineering, Vol. 17, No. 4, 2008, pp. 15-32.

[3]   A. Yesil, F. Kacar and H. Kuntman, “New Simple CMOS Realization of Voltage Differencing Transconductance Amplifier and Its RF Filter Application,” Radioengineering, Vol. 20, No. 3, 2011, pp. 632-637.

[4]   D. Prasad and D. R. Bhaskar, “Electronically-Controllable Explicit Current Output Sinusoidal Oscillator Employing Single VDTA,” ISRN Electronics, Vol. 2012, 2012, Article ID: 382560. doi:10.5402/2012/382560

[5]   J. Satansup, T. Pukkalanun and W. Tangsrirat, “Electronically Tunable Single-Input Five-Output Voltage-Mode Universal Filter Using VDTAs and Grounded Passive Elements,” Circuits, Systems, and Signal Processing, 2012 (online). doi:10.1007/s00034-012-9492-0

[6]   A. Fabre and J. L. Houle, “Voltage-Mode and Current-Mode Sallen-Key Implementations Based on Translinear Conveyors,” IEEE Proceedings-G: Circuits, Devices and Systems, Vol.139, No.7, 1992, pp. 491-497.

[7]   C. M. Chang, C. C. Chien and H. Y. Wang, “Universal Active Current Filters Using Single Second Generation Current Conveyor,” Electronics Letters, Vol. 29, No. 13, 1993, pp. 1159-1160. doi:10.1049/el:19930775

[8]   E. Yuce, B. Metin and O. Cicekoglu, “Current-Mode Biquadratic Filters Using Single CCIII and Minimum Number of Passive Elements,” Frequenz: Journal of RF-Engineering and Telecommunications, Vol. 58, No. 9-10, 2004, pp. 225-227.

[9]   B. Chaturvedi and S. Maheshwari, “Current Mode Biquad Filter with Minimum Component Count,” Journal of Active and Passive Electronic Components, Vol. 2011, 2011, Article ID: 391642. doi:10.1155/2011/391642

[10]   D. Biolek, V. Biolkova and Z. Kolka, “Current-Mode Biquad Employing Single CDTA,” Indian Journla of Pure and Applied Physics, Vol. 47, No. 7, 2009, pp. 535-537.

[11]   W. Tangsrirat, “Novel Current-Mode and Voltage-Mode Universal Biquad Filters Using Single CFTA,” Indian Journal of Engineering and Material Science, Vol. 17, 2010, pp. 99-104.

[12]   C. N. Lee and C. M. Chang, “Single FDCCII-Based Mixed-Mode Biquad Filter with Eight Outputs,” AEU: International Journal of Electronics and Communications, Vol. 63, No. 9, 2009, pp. 736-742. doi:10.1016/j.aeue.2008.06.015

[13]   D. Prasad, D. R. Bhaskar and A. K. Singh, “Universal Current-Mode Biquad Filter Using Dual Output Current Differencing Transconductance Amplifier,” AEU: International Journal of Electronics and Communications, Vol. 63, No. 6, 2009, pp. 497-501. doi:10.1016/j.aeue.2008.02.012

 
 
Top