A new universal multiple input multiple output (MIMO) type current-mode biquad employing two dual output current conveyors (DOCCII), one multiple output current controlled current amplifier (MOCCCA) and four passive grounded elements is proposed which can realize all the five basic filtering functions namely, low-pass (LP), high-pass (HP), band-pass (BP), band-stop (BR) and all-pass (AP) in current mode from the same configuration. The centre frequency can be set by the passive elements of the circuit and the quality factor Q0is electronically tunable through bias currents of the MOCCCA. Therefore, the biquad filter has independent tenability for the and Q0. The active and passive sensitivities of Q0 and are low. The workability of the new configuration has been demonstrated by PSPICE simulation results based upon a CMOS CCII in0.35μm technology.
Cite this paper
K. Abdalla, "Universal Current-Mode Biquad Employing Dual Output Current Conveyors and MO-CCCA with Grounded Passive Elements," Circuits and Systems, Vol. 4 No. 1, 2013, pp. 83-88. doi: 10.4236/cs.2013.41013.
 W. Chunbua, L. Haiguang and Z. Yan, “Universal Current-Mode Filter with Multiple Inputs and One Output Using MOCCII and MO-CCCA,” International Journal of Electronics and Communications (AEU), Vol. 63, No. 6, 2009, pp. 448-453. doi:10.1016/j.aeue.2008.03.004
 R. Senani and A. K. Singh, “A New Universal Current-Mode Biquad Filter,” Frequenz: Journal of TeleCommunications, Vol. 56, No. 1-2, 2002, pp. 55-59.
 R. Senani, V. K. Singh, A. K. Singh and D. R. Bhaskar, “Tunable Current-Mode Universal Biquads Employing Only Three MOCCs and All Grounded Passive Elements: Additional New Realizations,” Frequenz: Journal of Tele-Communications, Vol. 59, No. 7-8, 2005, pp. 220-224.
 R. Senani, A. K. Singh, V. K. Singh, “New Tunable SIMO-Type Current-Mode Universal Biquad Using Only Three MOCCs and All Grounded Passive Elements,” Frequenz: Journal of Tele-Communications, Vol. 57, No. 7-8, 2003, pp. 160-161.
 H. Y. Wang and C. T. Lee, “Versatile Insensitive Current Mode Universal Biquad Implementation Using Current Conveyors,” IEEE Transactions on CAS-II. Analog and Digital Signal Processing, Vol. 48, No. 4, 2001, pp. 409-413.
 W. Chunhua, Z. Yan, Z. Qiujing and D. U. Sichun, “A New Current Mode SIMO-Type Universal Biquad Employing Multi-Output Current Conveyors (MOCCIIs),” Radioengineering, Vol. 18, No.1, 2009, pp. 83-88.
 J. W. Horng, C. L. Hou, C. M. Chang, J. Y. Shie and C. H. Chang, “Universal Current Filter with Single Input and Three Outputs Using MOCCIIs,” International Journal of Electronics, Vol. 94, No. 4, 2004, pp. 191-197.
 M. Siripruchyanun and W. Jaikla, “Cascadable Current-Mode Biquad Filter and Quadrature Oscillator Using DO-CCCIIs and OTA,” Circuits Systems and Signal Processing, Vol. 28, No. 1, 2009, pp. 99-110.
 R. Senani, “New Universal Current Mode Biquad Employing All Grounded Passive Components but Only Two DOCCs,” Journal of Active and Passive Electronic Devices, Vol. 1, No. 3-4, 2006, pp. 281-288.
 M. Kumngern, W. Jongchanachavawat and K. Dejhan, “New Electronically Tunable Current-Mode Universal Biquad Filter Using Translinear Current Conveyors,” International Journal of Electronics, Vol. 97, No. 5, 2010, pp. 511-523. doi:10.1080/00207210903486823
 T. Tsukutani, Y. Sumi and N. Yabuki, “Versatile Current-Mode Biquadratic Circuit Using Only Plus Type DO-DVCCs and Grounded Passive Capacitors,” International Journal of Electronics, Vol. 94, No. 12, 2007, pp. 1147-1156. doi:10.1080/00207210701789998
 T. Tsukutani, Y. Sumi and N. Yabuki, “Novel Current-Mode Biquadratic Circuit Using Only Plus Type DODVCCs and Grounded Passive Components,” International Journal of Electronics, Vol. 94, No. 12, 2007, pp. 1137-1146. doi:10.1080/00207210701791085
 H. P. Chen and P. L. Chu, “Versatile Universal Electronically Tunable Current-Mode Filter Using CCCIIs,” IEICE Electronics Express, Vol. 6, No. 2, 2009, pp. 122-128. doi:10.1587/elex.6.122
 C. H. Wang, J. Xu, A. ü. Keskin, S. C. Du and Q. J. Zhang, “A New Current-Mode Current-Controlled SIMO-Type Universal Filter,” International Journal of Electronics and Communications (AEU), Vol. 65, No. 3, 2011, pp. 231-234. doi:10.1016/j.aeue .2010.02. 010
 V. K. Singh, A. K. Singh and R. Senani, “Dual Function Capability of Recently Proposed Four-Current Conveyor-Based VM Biquad,” Journal of Circuits, Systems and Computers, Vol. 14, No. 1, 2005, pp. 51-56.
 S. I. Liu, H. W. Tsao and J. Wu, “CCII-Based Continuous-Time Filters with Reduced Gain Bandwidth Sensitivity,” IEEE Proceedings of Circuits, Devices & Systems, Vol. 139, No. 2, 1991, pp. 210-216.
 E. Yuce, S. Minaei and O. Cicekoglu, “A Novel Grounded Inductor Realization Using a Minimum Number of Active and Passive Components,” ETRI Journal, Vol. 27, No. 4, 2005, pp. 427-432.