Novel Electronically Tunable Biquadratic Mixed-Mode Universal Filter Capable of Operating in MISO and SIMO Configurations

Mohammad Faseehuddin, Musa Ali Albrni, Norbert Herencsar, Jahariah Sampe, Sawal Hamid Md Ali


In this paper, a novel electronically tunable biquadratic universal mixed-mode filter is presented. The filter is based on extra X current conveyor transconductance amplifier (EXCCTA), recently introduced by authors. The proposed filter employs two EXCCTAs, two capacitors, a switch, and four resistors. The filter can work in both multi-input-single-output (MISO) and single-input-multi-output (SIMO) configurations without change in its structure. The filter provides low-pass (LP), high-pass (HP), band-pass (BP), band-reject (BR) and all-pass (AP) responses in voltage-mode (VM), current-mode (CM), transimpedance-mode (TIM), and transadmittance-mode (TAM). The attractive features of the filter include (i) ability to operate in both MISO and SIMO configurations in all four modes, (ii) no requirement of capacitive matching, (iii) high output impedance in SIMO (CM & TAM) configuration, (iv) tunability of quality factor (Q) independent of natural frequency ( ) in MISO & SIMO configurations, (v) use of grounded capacitors in SIMO configuration, (vi) low output impedance for MISO (VM & TIM), (vii) high output impedance explicit current output for MISO (CM & TAM), and (viii) no requirement for double/negative input signals (voltage/current) in MISO configuration. The non-ideal gain and sensitivity analysis is also carried out to study the effects of process variations and passive components spread on filter performance. The filter is designed in Cadence Virtuoso using Silterra Malaysia 0.18µm PDK. The complete layout of the EXCCTA is designed and the parasitic extraction is done. The filter is tested at a supply voltage of ±1.25 V and the obtained results validate the theoretical findings.


analog signal processing; voltage-mode; current-mode; transimpedance-mode; EXCCTA; universal filter

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P.V.A. Mohan, Current-mode VLSI analog filters design and applications, Springer Science & Business Media, 2012.

G. Ferri, N.C. Guerrini, Low-voltage low-power CMOS current conveyors, Springer Science & Business Media, 2003.

R. Raut, M.N.S. Swamy, Modern analog filter analysis and design: a practical approach, John Wiley & Sons, 2010.

H.P. Chen, Voltage-mode multifunction biquadratic filter with one input and six outputs using two ICCIIs, Sci. World J. (2014) 432570:1–7. doi:10.1155/2014/432570.

F. Mohammad, J. Sampe, S. Shireen, S. Hamid, Minimum Passive Components Based Lossy and Lossless Inductor Simulators Employing a New Active Block, AEU - Int. J. Electron. Commun. 82 (2017) 226-240. doi:10.1016/j.aeue.2017.08.046.

R. Senani, D.R. Bhaskar, A.K. Singh, Current conveyors: Variants, applications and hardware implementations, Springer Science & Business Media,2015. doi:10.1007/978-3-319-08684-2.

M. Taher, A. Atti, A novel mixed-mode current-controlled current-conveyor-based filter, Active and passive electronic components 26 (2003) 185–191.

H.P. Chen, Y.Z. Liao, W.T. Lee, Tunable mixed-mode OTA-C universal filter, Analog Integrated Circuits and Signal Processing (2009) 135–141. doi:10.1007/s10470-008-9228-z.

M. Taher, A. Atti, A. Bentrcia, A novel mixed-mode CCII-based filter, Active and Passive Electronic Components 27 (2004) 197–206.

A. Yesil, F. Kacar, Electronically Tunable Resistorless Mixed Mode Biquad Filters, Radioengineering (2013) 1016–1025.

A.M. Soliman, Mixed-mode biquad circuits, Microelectronics Journal 27 (1996) 591–594.

D. Singh, N. Afzal, Fully Digitally Programmable Generalized Mixed Mode Universal Filter Configuration, Circuits, Syst. Signal Process. 35 (5) (2016) 1457-1480. doi:10.1007/s00034-015-0125-2.

S. Maheshwari, Realization of Simple Electronic Functions Using EXCCII, J. Circuits, Syst. Comput. 26 (2017) 1750171. doi:10.1142/S0218126617501717.

D. Biolek, R. Senani, V. Biolkova, Z. Kolka, Active elements for analog signal processing: Classification, review, and new proposals, Radioengineering. 17 (2008) 15–32.

M. Faseehuddin, J. Sampe, S. Shireen, Lossy and Lossless Inductance Simulators and Universal Filters Employing a New Versatile Active Block, Informacije MIDEM, 48 (2018) 97–113.

V.K. Singh, A.K. Singh, D.R. Bhaskar, R. Senani, Novel mixed-mode universal biquad configuration, IEICE Electronics Express 2(22) (2005) 548–553. doi:10.1587/elex.2.548.

N.A. Shah, M.A. Malik, Multifunction Mixed-Mode Filter using FTFNs, Analog Integr. Circuits Signal Process. 3 (2006) 339–343.

C.N. Lee, C.M. Chang, Single FDCCII-based mixed-mode biquad filter with eight outputs, AEU - Int. J. Electron. Commun. 63 (2009) 736–742. doi:10.1016/j.aeue.2008.06.015.

L. Zhijun, Mixed-mode universal filter using MCCCII, AEU - Int. J. Electron. Commun. 63 (2009) 1072–1075. doi:10.1016/j.aeue.2008.09.003.

S. Minaei, M.A. Ibrahim, A mixed-mode KHN-biquad using DVCC and grounded passive elements suitable for direct cascading, International Journal of Circuit Theory and Applications 37(7) (2009) 793–810. doi:10.1002/cta.

S. Maheshwari, S.V. Singh, D.S. Chauhan, Electronically tunable low-voltage mixed-mode universal biquad filter, IET Circuits, Devices & Systems 5(3) (2011) 149–158. doi:10.1049/iet-cds.2010.0061.

S. V Singh, S. Maheshwari, D.S. Chauhan, Electronically Tunable Current / Voltage- mode Universal Biquad Filter using CCCCTA, International J. of Recent Trends in Engineering and Technology 3(3) (2010) 71–76.

W. Liao, J. Gu, SIMO type universal mixed-mode biquadratic filter, Indian Journal of Engineering & Materials Science18 (2011) 443–448.

H. Chen, W. Yang, Electronically Tunable Current Controlled Current Conveyor Transconductance Amplifier-Based Mixed-Mode Biquadratic Filter with Resistorless and Grounded Capacitors, Applied Sciences 7(3) (2017). doi:10.3390/app7030244.

V. Chamnanphai, W. Sa-ngiamvibool, Electronically Tunable SIMO Mixed-mode Universal Filter using VDTAs, Przegląd Elektrotechniczny 93(3) (2017) 207–211. doi:10.15199/48.2017.03.48.

H. Mahmoodian, A Low-Power Mixed-Mode SIMO Universal G_m-C Filter, Journal of Circuits, Systems and Computers 26(10) (2017). doi:10.1142/S021812661750164X.

J. Horng, C. Wu, N. Herencsar, Current-mode and transimpedance-mode universal biquadratic filter using two current conveyors, Indian Journal of Engineering & Materials Science24 (2017) 461–468.

M.T. Abuelma'atti, A. Bentrcia, M. Al-shahrani, A novel mixed-mode current-conveyor-based filter, International Journal of Electronics 91(3) (2004) 191–197. doi:10.1080/00207210410001677039.

N. Pandey, S.K. Paul, A. Bhattacharyya, S.B. Jain, A new mixed mode biquad using reduced number of active and passive elements, IEICE Electronics Express 3(6) (2006) 115–121. doi:10.1587/elex.3.115.

C. Lee, Multiple-Mode OTA-C Universal Biquad Filters, Circuits, Systems and Signal Processing 29(2) (2010) 263–274. doi:10.1007/s00034-009-9145-0.

N. Pandey, S.K. Paul, A. Bhattacharyya, S.B. Jain, Realization of Generalized Mixed Mode Universal Filter Using CCCIIs, Journal of Active & Passive Electronic Devices 5 (2010) 279–293.

N. Pandey, S.K. Paul, Mixed mode universal filter, Journal of Circuits, Systems and Computers 22(01) (2013) 1–10. doi:10.1142/S0218126612500648.

C.N. Lee, Independently tunable mixed-mode universal biquad filter with versatile input/output functions, AEU - Int. J. Electron. Commun. 70 (2016) 1006–1019. doi:10.1016/j.aeue.2016.04.006.

T. Tsukutani, N. Yabuki, A DVCC-Based Mixed-Mode Biquadratic Circuit, Journal of Electrical Engineering 6 (2018) 52–56. doi:10.17265/2328-2223/2018.01.008.

A. Fabre, O. Saaid, H. Barthelemy, On the frequency limitations of the circuits based on second generation current conveyors, Analog Integr. Circuits Signal Process. 7(2) (1995) 113–129.

B. Chaturvedi, J. Mohan A. Kumar, A new versatile universal biquad configuration for emerging signal processing applications. Journal of Circuits, Systems and Computers, 27(12), 1850196. 10.1142/S0218126618501967

C.N Lee, Mixed-mode universal biquadratic filter with no need of matching conditions. Journal of Circuits, Systems and Computers, 25(09), 1650106. 10.1142/S0218126616501061.



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