CMOS programmable universal filter using CCTAs

This paper presents a new CMOS programmable universal filter using three current conveyor transconductance amplifiers, two grounded capacitors and four grounded resistors. Unlike previous universal filters, low-pass, high-pass, band-pass, band-stop and all-pass filtering functions of proposed universal filter can be programmed using bias current. The angular natural frequency of all filtering functions can be controlled electronically using other bias currents. The proposed structure is favorable for integrated circuit implementation. The proposed filter has been simulated sing PSPICE simulators to verify the presented theory.

[1]  Hussain A. Alzaher.  A CMOS Digitally Programmable Universal Current-Mode Filter , 2008, IEEE Transactions on Circuits and Systems II: Express Briefs.

[2]  Jiun-Wei Horng,et al.  High-Input and Low-Output Impedance Voltage-Mode Universal Biquadratic Filter Using DDCCs , 2007, IEEE Transactions on Circuits and Systems II: Express Briefs.

[3]  Montree Kumngern,et al.  New electronically tunable current-mode universal biquad filter using translinear current conveyors , 2010 .

[4]  K. Smith,et al.  A second-generation current conveyor and its applications , 1970, IEEE Transactions on Circuit Theory.

[5]  Jean-Pierre Chante,et al.  A current conveyor-based high-frequency analog switch , 1998 .

[6]  Montree Kumngern,et al.  CMOS programmable P, PI, PD and PID controller circuit using CCTAs , 2016, 2016 International Conference on Electronics, Information, and Communications (ICEIC).

[7]  Yasuaki Sumi,et al.  Versatile voltage-mode active-only biquad with lossless and lossy integrator loop , 2001 .

[8]  Muhammad Taher Abuelma'atti,et al.  A novel three inputs and one output universal current-mode filter using plus-type CCIIs , 1999 .

[9]  Adisak Monpapassorn.  Chopper Modulators Using Current Conveyor Analogue Switches , 2005 .

[10]  Muhammad Taher Abuelma'atti,et al.  A novel single-input multiple-output current-mode current-controlled universal filter , 1998 .

[11]  Shahram Minaei,et al.  All-Grounded Passive Elements Voltage-Mode DVCC-Based Universal Filters , 2010, Circuits Syst. Signal Process..

[12]  Roman Sotner,et al.  Tunable oscillator using two CCTA-s and only grounded passive elements , 2010, 2010 9th International Conference on Environment and Electrical Engineering.

[13]  Kamil Vrba,et al.  Single CCTA–Based Universal Biquadratic Filters Employing Minimum Components , 2009 .

[14]  Hassan Elwan,et al.  Low-voltage low-power CMOS current conveyors , 1997 .

[15]  Roman Prokop,et al.  NEW MODERN CIRCUIT BLOCK CCTA AND SOME ITS APPLICATIONS , 2005 .

[16]  Pipat Prommee,et al.  Two digitally programmable gain amplifiers based on current conveyors , 2011 .

[17]  A. Fabre,et al.  Universal current mode biquad implemented from two second generation current conveyors , 1995 .

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

[19]  Devesh SINGH,et al.  Digitally Programmable High-Q Voltage-Mode Universal Filter , 2013 .

[21]  Chun-Ming Chang,et al.  Novel versatile insensitive universal current-mode biquad employing two second-generation current conveyors , 2003 .

[22]  Mohammed S. Ghausi,et al.  Design of analog filters : passive, active RC, and switched capacitor , 1990 .

[23]  A. Monpapassorn.  Programmable wide range voltage adder/subtractor and its application as an encoder , 2005 .