A Novel Mix-Mode Universal Filter Employing a Single Active Element and Minimum Number of Passive Components

MOHAMMAD FASEEHUDDIN, Jahariah Sampe, Sadia Shireen, Sawal Hamid Md Ali


A Novel biquadratic mixed mode tunable universal filter is presented. The mix mode filter is based on a new versatile active element dual X current conveyor differential input transconductance amplifier (DXCCDITA). The filter is capable of realizing high pass (HP), low pass (LP), band pass (BP), notch pass (NP) and all pass (AP) responses in voltage mode (VM), current mode (CM) and trans-impedance mode (TIM). In trans-admittance (TAM) mode the filter can realize HP and BP responses. The striking feature of the design is that it is the first reported mix mode Multi Input Single Output (MISO) filter employing a single active element for the design. The requirement of passive elements for the design is also minimum, only two capacitors and two resistors. The second resistor is required only for obtaining TIM filter response. By properly exciting the filter structure with appropriate current or voltage signals the filter response in all four modes can be obtained. Additionally, VM response can be obtained both in inverting and non-inverting form simultaneously. The pole frequency and quality factor of the filter are tunable. The non-ideal and sensitivity analysis of the filter is conducted to further study the effect of process variability on the filter response. The filter is simulated in Spice using 0.35µm CMOS model parameters obtained from TSMC. Additionally, the DXCCDITA is also constructed using P-spice macro models obtained from the manufactures of ICs AD844 and LM13700. The modelled DXCCDITA is used to simulated the VM filter response to further validate its performance.


Current mode; Current conveyor; Cascadable; Mix Mode Filter; Tunable

Full Text:



J.-W. Horng, "High-input impedance voltage-mode universal biquadratic filter using three plus-type CCIIs," IEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing, vol. 48, pp. 996-997, 2001.

M. Faseehuddin, J. Sampe, S. Islam, “Schmitt Trigger based on Dual Output Current Controlled Current Conveyor in 16nm CMOS technology for digital applications", In IEEE International Conference on Semiconductor Electronics (ICSE), pp. 82-85, 2016.

R. Senani, D. Bhaskar, A. Singh, “Current conveyors: variants, applications and hardware implementations”, Springer, 2014.

J. Sampe, F. F. Zulkifli, N. A. A. Semsudin, M. S. Islam, and B. Y. Majlis, "Ultra low power hybrid micro energy harvester using rf, thermal and vibration for biomedical devices," International Journal of Pharmacy and Pharmaceutical Sciences, vol. 8, pp. 18-21, 2016.

M. T. Abuelma'atti, "A novel mixed-mode current-controlled current-conveyor-based filter," Active and passive electronic components, vol. 26, pp. 185-191, 2003.

M. T. Abuelma'atti, A. Bentrcia, and S. a. M. Al-Shahrani, "A novel mixed-mode current-conveyor-based filter," International Journal of Electronics, vol. 91, pp. 191-197, 2004.

S. Maheshwari, S. V. Singh, and D. S. Chauhan, "Electronically tunable low-voltage mixed-mode universal biquad filter," IET circuits, devices & systems, vol. 5, pp. 149-158, 2011.

J.-W. Horng, "High-order current-mode and transimpedance-mode universal filters with multiple-inputs and two-outputs using MOCCIIs," Radioengineering, vol. 18, pp. 537-543, 2009.

M. Siripruchyanun, W. Jaikla, "Three-input single-output electronically controllable dual-mode universal biquad filter using DO-CCCIIs," Active and Passive Electronic Components, vol. 2007, 2007.

N. Pandey, S. K. Paul, A. Bhattacharyya, and S. Jain, "Realization of Generalized Mixed Mode Universal Filter Using CCCIIs," Journal of Active and Passive Electronic Devices, vol. 55, pp. 279-293, 2009.

L. Zhijun, "Mixed-mode universal filter using MCCCII," AEU-International Journal of Electronics and Communications, vol. 63, pp. 1072-1075, 2009.

V. Singh, A. K. Singh, D. R. Bhaskar, and R. Senani, "Novel mixed-mode universal biquad configuration," IEICE Electronics Express, vol. 2, pp. 548-553, 2005.

J.-W. Horng, " Current-mode and transimpedance-mode universal biquadratic filter using multiple outputs CCIIs," Indian Journal of Engineering & Materials Sciences, vol. 17, pp. 169-174, 2010.

W. B. Liao, J. C. Gu, “SIMO type universal mixed-mode biquadratic filter”, Indian Journal of Engineering and Materials Sciences, vol. 18, no. 6, pp. 443-448, 2011.

C. N. Lee, C. M. Chang, “Single FDCCII-based mixed-mode biquad filter with eight outputs”, AEU-International Journal of Electronics and Communications, vol. 63, no. 9, pp. 736-742, 2009.

C. N. Lee, “Independently tunable mixed-mode universal biquad filter with versatile input/output functions”, AEU-International Journal of Electronics and Communications, vol. 70, no. 8, pp. 1006-1019, 2016.

N. Pandey, S. K. Paul, “Mixed mode universal filter”, Journal of Circuits, Systems and Computers, vol. 22, no. 1, pp. 1250064(1-10).

H. P. Chen, “Single CCII-based voltage-mode universal filter”, Analog Integrated Circuits and Signal Processing, vol. 62, no. 2, pp. 259-262, 2010.

T. M. Hassan, S. A. Mahmoud, “New CMOS DVCC realization and applications to instrumentation amplifier and active-RC filters”, AEU-International Journal of Electronics and Communications, vol. 64, no. 1, pp. 47-55, 2010.

F. Kaçar, A. Yeşil, “Voltage mode universal filters employing single FDCCII”. Analog Integrated Circuits and Signal Processing, vol. 63, no. 1, pp. 137-142, 2010.

N. Pandey, S. K. Paul, “Differential difference current conveyor transconductance amplifier: a new analog building block for signal processing”, Journal of Electrical and Computer Engineering, 2011, vol. 17, 2011.

K. L. Pushkar, D. R. Bhaskar, D. Prasad, “Voltage-mode new universal biquad filter configuration using a single VDIBA”, Circuits, Systems, and Signal Processing, vol. 33, no. 1, pp. 275-285, 2014.

D. Prasad, D. R. Bhaskar, M. Srivastava, “Universal voltage-mode biquad filter using voltage differencing transconductance amplifier”, Indian Journal of Pure & Applied Physics (IJPAP), vol. 51, no. 12, pp. 864-868.

W. Mekhum, W. Jaikla, “Three input single output voltage-mode multifunction filter with independent control of pole frequency and quality factor”, Advances in Electrical and Electronic Engineering, vol. 11, no. 6, pp. 494, 2014.

K. L. Pushkar, D. R. Bhaskar, D. Prasad, “A new MISO-type voltage-mode universal biquad using single VD-DIBA”, ISRN Electronics, 2013.

A. Ü. Keskin, “Multi-function biquad using single CDBA”, Electrical Engineering, vol. 88, no. 5, pp. 353-356, 2013.

J. W. Horng, C. K. Chang, C. H. U. Jie-Mei, “Voltage-mode universal biquadratic filter using single current-feedback amplifier”, IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, vol. 85, no. 8, pp. 1970-1973, 2012.

D. Prasad, D. R. Bhaskar, A. K. Singh, “Multi-function biquad using single current differencing transconductance amplifier”, Analog Integrated Circuits and Signal Processing, vol. 61, no. 3, pp. 309-313, 2009.

R. K. Sharma, R. Senani, “Universal current mode biquad using a single CFOA”, International Journal of Electronics, vol. 91, no. 3, pp. 175-183, 2004.

S. A. Bashir, N. A. Shah, “Voltage Mode Universal Filter Using Current Differencing Buffered Amplifier as an Active Device”, Circuits and Systems, vol. 3, no. 3, pp. 278-281, 2012.

J. W. Horng, “ Voltage/current-mode universal biquadratic filter using single CCII+”, Indian Journal of Pure & Applied Physics, vol. 48, pp. 749-756, 2010.

C. M. Chang, B. M. Al-Hashimi, C. L.Wang, C. W. Hung, “Single fully differential current conveyor biquad filters”, IEE Proceedings-Circuits, Devices and Systems, vol. 150, no. 5, pp. 394-398, 2003.

Analog Devices,"AD844, Datasheet, MHz 2000V/µs Monolithic Op Amp, Analog Devices, Rev." 2009.

N. Semiconductor, "LM13700 dual operational transconductance amplifiers with linearizing diodes and buffers", 2000.

A. Fabre, O. Saaid, H. Barthelemy, “On the frequency limitations of the circuits based on second generation current conveyors”, Analog Integrated Circuits and Signal Processing, vol. 7, no. 2, pp.113-129, 1995.


  • There are currently no refbacks.