Single Active Element Based Cascadable Band-Pass Filters for Low-Q Applications

The paper presents new single active element based second order band pass filters. The new circuits use single dual-X current conveyor with buffered output and five passive components. The proposed circuits enjoy the features of high input impedance and low output impedance, which are desirable features for voltage-mode circuits. Circuit operation at high frequencies are verified along with non-ideality and parasitic study. The Monte Carlo analysis is also done which justify good sensitivity performances of the proposed circuits. Routh–Hurwitz's stability test is performed to verify the stability of the proposed circuits. For showing the integration aspect, resistorless band-pass filters are also realized. The proposed low-Q filters are useful for cascading. The feature of cascadability is further utilized by showing an application of fourth-order band-pass filter. The performances of the proposed circuits are depicted through Personal Simulation Program with Integrated Circuit Emphasis (PSPICE) simulations, which show good agreement to theoretical applications. The new circuits are expected to enhance the already existing knowledge on the subject.

[1]  A. U. Keskin.  Multi-function biquad using single CDBA , 2006 .

[2]  Hakan Kuntman,et al.  Multi-input single-output filter with reduced number of passive elements employing single current conveyor , 2003, Comput. Electr. Eng..

[3]  M. Bhushan,et al.  Grounding of capacitors in integrated circuits , 1967 .

[4]  Chun-Ming Chang,et al.  Universal voltage-mode filter with three inputs and one output using three current conveyors and one voltage follower , 1994 .

[5]  M. Higashimura.  Realisation of voltage-mode biquads using CCIIs , 1991 .

[6]  Sudhanshu Maheshwari,et al.  High Input Impedance voltage-Mode Universal Filter and quadrature oscillator , 2010, J. Circuits Syst. Comput..

[7]  R. Nandi.  Active inductances using current conveyors and their application in a simple bandpass filter realisation , 1978 .

[8]  Ahmed M. Soliman.  Two novel active RC canonic bandpass networks using the current conveyor , 1977 .

[9]  A. Toker,et al.  The dual-X current conveyor (DXCCII): a new active device for tunable continuous-time filters , 2003 .

[10]  A. U. Keskin.  Voltage-Mode Notch Filters Using Single CDBA , 2005 .

[11]  Z. Wang,et al.  2-MOSFET transresistor with extremely low distortion for output reaching supply voltages , 1990 .

[12]  Jiun-Wei Horng,et al.  High-input impedance voltage-mode universal biquadratic filter using three plus-type CCIIs , 2001 .

[13]  Jiun-Wei Horng,et al.  High input impedance voltage-mode multifunction filters using plus-type CCIIs , 1997 .

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

[15]  N. A. Shah,et al.  Versatile voltage-mode universal biquad filter using the operational amplifier pole , 2007 .

[16]  Ali Toker,et al.  New high-Q band-pass filter configuration using current controlled current conveyor based all-pass filters , 2001, ICECS 2001. 8th IEEE International Conference on Electronics, Circuits and Systems (Cat. No.01EX483).

[17]  Kenneth C. Smith,et al.  Biquadratic filter sections employing a single current conveyor , 1986 .

[18]  A. U. Keskin.  Voltage-mode high-Q band-pass filters and oscillators employing single CDBA and minimum number of components , 2005 .

[19]  Worapong Tangsrirat,et al.  High-Input Impedance Voltage-Mode Multifunction Filter Using a Single DDCCTA and Grounded Passive Elements , 2011 .