Some Analog Filters of Reduced Complexity with Shelving and Multifunctional Characteristics

This paper presents first-order voltage-mode filters using a single current conveyor with an additional X-stage, and passive elements. The new circuits have multifunction capability, and also realize low-shelf, high-shelf and band-shelf functions. The study is carried out on the effects of non-idealities, parasitic elements, and loading on the performance of proposed circuits. Active and passive sensitivities are also analyzed. The active element, extra-X current conveyor used for designing new circuits is simpler than most of the one active element and two passive elements’ based circuits. Detailed comparisons are carried out with relevant available works, and the new circuits are found to be more compact and exhibit higher frequency performances. The simulation results using 0.25μm CMOS parameters with ±1.25V power-supply are shown to verify the proposed circuits. The proposed circuits are also verified through simulations. Experimental support is given using AD-844 ICs to strengthen the validity of the...

[1]  Shahram Minaei,et al.  All-pass sections with rich cascadability and IC realization suitability , 2012, Int. J. Circuit Theory Appl..

[2]  R. I. Salawu.  Realization of an all-pass transfer function using the second generation current conveyor , 1980 .

[3]  Yutaka Fukui,et al.  Research note Realization of all-pass networks using a current conveyor , 1988 .

[4]  Ahmed M. Soliman,et al.  Pathological representation of the two‐output CCII and ICCII family and application , 2011, Int. J. Circuit Theory Appl..

[5]  Erkan Yuce.  A Novel CMOS-Based Voltage-Mode First-Order Phase Shifter Employing a Grounded Capacitor , 2010 .

[6]  Ahmed M. Soliman,et al.  Generation of current conveyor-based all-pass filters from op amp-based circuits , 1997 .

[7]  Hakan Kuntman,et al.  First-Order All-Pass Filter Canonical in the Number of Resistors and Capacitors Employing a Single DDCC , 2003 .

[8]  Erkan Yuce,et al.  A new single CCII- based voltage-mode first-order all-pass filter and its quadrature oscillator application , 2015 .

[9]  Sudhanshu Maheshwari,et al.  Current-Mode Precision Full-Wave Rectifier Circuits , 2017, Circuits Syst. Signal Process..

[10]  Khaled Hayatleh,et al.  Novel input stages for current feedback operational amplifiers , 2007 .

[11]  Sudhanshu Maheshwari.  New voltage and current-mode APS using current controlled conveyor , 2004 .

[12]  Shahram Minaei,et al.  High Input Impedance NMOS-based Phase Shifter with Minimum Number of Passive Elements , 2012, Circuits Syst. Signal Process..

[13]  Sudhanshu Maheshwari,et al.  Cascadable and Tunable Analog Building Blocks Using EX-CCCII , 2017, J. Circuits Syst. Comput..

[14]  Shahram Minaei,et al.  Unity/Variable-gain Voltage-mode/Current-mode First-order All-pass Filters Using Single Dual-X Second-generation Current Conveyor , 2010 .

[15]  Sudhanshu Maheshwari.  Current Conveyor All-Pass Sections: Brief Review and Novel Solution , 2013, TheScientificWorldJournal.

[16]  B. B. Bhattacharyya,et al.  An optimal design of RC active filters using grounded capacitors , 1978 .

[17]  Kirat Pal,et al.  CMOS‐controlled inverting CDBA with a new all‐pass filter application , 2011, Int. J. Circuit Theory Appl..

[18]  Sudhanshu Maheshwari.  Current Conveyor Based Window Comparator Circuits , 2016 .

[19]  Shahram Minaei,et al.  A novel phase shifter using two NMOS transistors and passive elements , 2009 .

[20]  Vincenzo Stornelli,et al.  Current conveyor-based differential capacitance analog interface for displacement sensing application , 2017 .

[21]  Kamil Vrba,et al.  New resistorless and electronically tunable realization of dual-output VM all-pass filter using VDIBA , 2013 .

[22]  Norbert Herencsar,et al.  Resistorless Current-Mode First-Order All-Pass Filter with Electronic Tuning Employing Low-Voltage CBTA and Grounded Capacitor , 2018, J. Circuits Syst. Comput..

[23]  Dalibor Biolek,et al.  First-order voltage-mode all-pass filter employing one active element and one grounded capacitor , 2010 .

[24]  Sudhanshu Maheshwari,et al.  Realization of Simple Electronic Functions Using EXCCII , 2017, J. Circuits Syst. Comput..

[25]  J. Horng,et al.  First-order allpass filter and sinusoidal oscillators using DDCCs , 2006 .

[26]  Sajal K. Paul,et al.  Current mode first order universal filter and multiphase sinusoidal oscillator , 2017 .

[27]  Ahmed M. Soliman.  Bode-Type Equalizers Using Current Conveyors , 2009, J. Circuits Syst. Comput..

[28]  M. Swamy,et al.  Network transposition and its application in synthesis , 1971, IEEE Transactions on Circuit Theory.

[29]  S. Maheshwari,et al.  High Performance Voltage-Mode Tunable All-Pass Section , 2015, J. Circuits Syst. Comput..

[30]  Hakan Kuntman,et al.  All-pass filters using a single current conveyor , 1999 .

[31]  Noboru Yabuki,et al.  Electronically tunable first-order all-pass circuit employing DVCC and OTA , 2010 .

[32]  Shahram Minaei,et al.  Derivation of low-power first-order low-pass, high-pass and all-pass filters , 2012 .

[33]  Costas Psychalinos,et al.  First-order allpass filter using multi-input OTA , 2013 .

[34]  Sudhanshu Maheshwari,et al.  High-input low-output impedance all-pass filters using one active element , 2012, IET Circuits Devices Syst..

[35]  Sudhanshu Maheshwari,et al.  Additional High-input Low-output impedance voltage-mode All-Pass sections , 2014, J. Circuits Syst. Comput..

[36]  Deepak Agrawal,et al.  Current mode filters with reduced complexity using a single EX-CCCII , 2017 .

[37]  O. Cicekoglu,et al.  New first-order inverting-type second-generation current conveyor-based all-pass sections including canonical forms , 2004 .

[38]  Shahram Minaei,et al.  A new ICCII based resistor-less current-mode first-order universal filter with electronic tuning capability , 2017, Microelectron. J..

[39]  I. A. Khan,et al.  Simple first order all-pass section using a single CCII , 2000 .