New Integrators and Differentiators Using a MMCC

Using the new building block Multiplication-Mode Current Conveyor (MMCC), some inverting/non-inverting type integrator and differentiator designs are presented, wherein the time constant (τ) is tuned electronically. The MMCC is implemented by a readily available chip-level configuration using a multiplier (ICL 8013) and a current feedback amplifier (AD-844 IC) CFA. Detailed analysis, taking into account the device non-idealities, had been carried out that indicates slight deviations affecting the values of the nominal time constant but the design is practically insensitive to the port mismatch errors (e). Satisfactory response on wave conversion, for signal frequencies up to 600 Khz had been verified with both hardware circuit test and PSPICE macromodel simulation.

[1]  S. Inaba,et al.  Monolithic current integrator circuit as a building block of wide dynamic range ADC for calorimetry system , 1992, IEEE Conference on Nuclear Science Symposium and Medical Imaging.

[2]  Rabindranath Nandi,et al.  Single CFA-Based Integrator, Differentiator, Filter, and Sinusoid Oscillator , 2009, IEEE Transactions on Instrumentation and Measurement.

[3]  Rabindranath Nandi.  High Frequency Q-Compensation of Tunable Summing Integrator and Differentiator , 1992 .

[4]  Worapong Tangsrirat,et al.  Single-resistance-controlled quadrature oscillator and universal biquad filter using CFOAs , 2009 .

[5]  J. Horng.  Current Differencing Buffered Amplifiers Based Single Resistance Controlled Quadrature Oscillator Employing Grounded Capacitors , 2002, IEICE Trans. Fundam. Electron. Commun. Comput. Sci..

[6]  Abhirup Lahiri,et al.  Novel voltage/current-mode quadrature oscillator using current differencing transconductance amplifier , 2009 .

[7]  Abdhesh K. Singh,et al.  Two Simple Analog Multiplier Based Linear VCOs Using a Single Current Feedback Op-Amp , 2010, Circuits Syst..

[8]  Gaetano Palumbo,et al.  Current-feedback amplifiers versus voltage operational amplifiers , 2001 .

[9]  Brent Maundy,et al.  A new design topology for low-voltage CMOS current feedback amplifiers , 2006, IEEE Transactions on Circuits and Systems II: Express Briefs.

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

[11]  Jiann-Jong Chen,et al.  New building block: multiplication-mode current conveyor , 2009, IET Circuits Devices Syst..

[12]  Hakan Kuntman,et al.  Accurate and high output impedance current mirror suitable for CMOS current output stages , 1997 .