ABSTRACT In this paper, four new first order voltage mode cascadable allpass sections are proposed using single active element and three grounded passive components, ideal for IC implementation. The active element used is a fully differential current conveyor. All the proposed circuit possess high input and low output impedance feature which is a desirable feature for voltagemode circuits. Nonideality aspects and parasitic effects are also given. As an application, a multiphase oscillator is designed. The proposed circuits are verified through PSPICE simulation results using TSMC 0.35 µm CMOS parameters.
Cite this paper
nullJ. Mohan, S. Maheshwari and D. Chauhan, "Voltage Mode Cascadable AllPass Sections Using Single Active Element and Grounded Passive Components," Circuits and Systems, Vol. 1 No. 1, 2010, pp. 5-11. doi: 10.4236/cs.2010.11002.
 M. Bhusan and R. W. Newcomb, “Grounding of Capacitors in Integrated Circuits,” Electronics Letters, Vol. 3, No. 4, 1967, pp. 148149.
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. 1532.
S. J. G. Gift, “The Application of AllPass Filters in the Design of Multiphase Sinusoidal Systems,” Microelectronics Journal, Vol. 31, No. 1, 2000, pp. 913.
A. M. Soliman, “Inductorless Realization of an AllPass Transfer Function Using the Current Conveyor,” IEEE Transactions on Circuits Theory, Vol. 20, 1973, pp. 8081.
A. M. Soliman, “Generation of Current ConveyorBased AllPass Filters from Op AmpBased Circuits,” IEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing, Vol. 44, No. 4, 1997, pp. 324330.
M. Higashimura and Y. Fukui, “Realization of AllPass Network Using a Current Conveyor,” International Journal of Electronics, Vol. 65, No. 22, 1988, pp. 249250.
O. Cicekoglu, H. Kuntman and S. Berk, “AllPass Filters Using a Single Current Conveyor,” International Journal of Electronics, Vol. 86, No. 8, 1999, pp. 947955.
I. A. Khan and S. Maheshwari, “Simple First Order All Pass Section Using a Single CCII,” International Journal of Electronics, Vol. 87, No. 3, 2000, pp. 303306.
A. Toker, S. ?zcan, H. Kuntman and O. ?i?ekoglu, “Su pplementary AllPass Sections with Reduced Number of Passive Elements Using a Single Current Conveyor,” International Journal of Electronics, Vol. 88, No. 9, 2001, pp. 969976.
M. A. Ibrahim, H. Kuntman and O. Cicekoglu, “First Order AllPass Filter Canonical in the Number of Resistors and Capacitors Employing a Single DDCC,” Circuits, Systems, and Signal Processing, Vol. 22, No. 5, 2003, pp. 525536.
N. Pandey and S. K. Paul, “AllPass Filters Based on CCII and CCCII,” International Journal of Electronics, Vol. 91, No. 8, 2004, pp. 485489.
K. Pal and S. Rana, “Some New FirstOrder AllPass Realizations Using CCII,” Active and Passive Electronic Component, Vol. 27, No. 2, 2004, pp. 9194.
S. Maheshwari, I. A. Khan and J. Mohan, “Grounded Capacitor FirstOrder Filters Including Canonical Forms,” Journal of Circuits, Systems and Computers, Vol. 15, No. 2, 2006, pp. 289300.
J. W. Horng, C. L. Hou, C. M. Chang, Y. T. Lin, I. C. Shiu and W. Y. Chiu, “FirstOrder AllPass Filter and Sinusoidal Oscillators Using DDCCs,” International Journal of Electronics, Vol. 93, No. 7, 2006, pp. 457466.
S. Minaei and O. Cicekoglu, “A Resistorless Realization of the First Order AllPass Filter,” International Journal of Electronics, Vol. 93, No. 3, 2006, pp. 177183.
H. P. Chen and K. H. Wu, “Grounded Capacitor First Order Filter Using Minimum Components,” IEICE Trans actions on Fundamentals of Electronics Communications and Computer Science, Vol. E89A, No. 12, 2006, pp. 37303731.
S. Maheshwari, “High Input Impedence VMAPSs with Grounded Passive Elements,” IET Circuits Devices and Systems, Vol. 1, No. 1, 2007, pp. 7278.
S. Maheshwari, “High Input Impedance Voltage Mode First Order AllPass Sections,” International Journal of Circuit Theory and Application, Vol. 36, No. 4, 2008, pp. 511522.
S. Maheshwari, “Analog Signal Processing Applications Using a New Circuit Topology,” IET Circuits Devices Systems, Vol. 3, No. 3, 2009, pp. 106115.
B. Metin and O. Cicekoglu, “Component Reduced All Pass Filter with a Grounded Capacitor and High Impedance Input,” International Journal of Electronics, Vol. 96, No. 5, 2009, pp. 445455.
D. Biolek and V. Biolkova, “Allpass Filter Employing one Grounded Capacitor and one Active Element,” Electronics Letters, Vol. 45, No. 16, 2009, pp. 807808.
D. Biolek and V. Biolkova, “First Order VoltageMode AllPass Filter Employing One Active Element and One Grounded Capacitor,” Analog Integrated Circuit and Signal Processing, 2009, DOI: 10.1007/s1047000994352.
T. Tsukutani, H. Tsunetsugu, Y. Sumi and N. Yabuki, “Electronically Tunable FirstOrder AllPass Circuit Employing DVCC and OTA,” International Journal of Electronics, Vol. 97, No. 3, 2010, pp. 285293.
S. Minaei and E. Yuce, “Novel VoltageMode AllPass Filter Based on Using DVCCs,” Circuits, Systems, and Signal Processing, Vol. 29, No. 3, 2010, pp. 391402.
A. A. ElAdway, A. M. Soliman and H. O. Elwan, “A Novel Fully Differential Current Conveyor and its Application for Analog VLSI,” IEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing, Vol. 47, No. 4, 2000, pp. 306313.
C. M. Chang, B. M. AlHashimi, C. I. Wang and C. W. Hung, “Single Fully Differential Current Conveyor Biquad Filters,” IEE Proceedings on Circuits, Devices and Systems, Vol. 150, No. 5, 2003, pp. 394398.
J. W. Horng, C. L. Hou, C. M. Chang, H. P. Chou, C. T. Lin and Y. Wen, “Quadrature Oscillators with Grounded Capacitors and Resistors Using FDCCIIs,” ETRI Journal., Vol. 28, No. 4, 2006, pp. 486494.