Abstract
Using a single current feedback amplifier (CFA) device, two new variable frequency sinusoidal RC oscillators are presented. The transadmittance pole of the device (AD-844) has been utilized in the design for generating sine wave signals covering a range of 1 MHz≤f 0≤31 MHz. Under open-loop conditions, both circuits exhibit resonance characteristics at moderate Q-values (1≤Q≤9). These responses have been experimentally verified with hardware circuit implementation and PSPICE macromodel simulation.
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M.T. Abuelmatti, S.M. Alshahrani, A novel low component count single-element controlled sinusoidal oscillator using the CFOA pole. Int. J. Electron. 80, 747–752 (1996)
M.T. Abuelmatti, S.M. Alshahrani, New universal filter using two current feedback amplifiers. Int. J. Electron. 80, 753–756 (1996)
Analog Devices: Linear products databook, Norwood, MA, USA (1990)
H.W. Cha, K. Watanabe, Wideband CMOS current conveyor. Electron. Lett. 32, 1245–1246 (1996)
A. Fabre, Insensitive voltage-mode and current-mode filters from commercially available transimpedance opamps. IEE Proc. G 140, 319–321 (1993)
S. Franco, Current feedback amplifiers, in Comlinear Corpn., Application Notes, pp. 3–8 (1989)
S.J.G. Gift, B. Maundy, Improving the bandwidth gain-independence and accuracy of the current feedback amplifier. IEEE Trans. Circuits Syst. Express Briefs 52, 136–139 (2005)
A.A. Khan, S. Bimal, K.K. Dey, S.S. Roy, Novel RC-sinusoidal oscillators using second generation current conveyor. IEEE Trans. Instrum. Meas. 54, 2402–2406 (2005)
S.I. Liu, High input impedance filters with low component spread using current feedback amplifiers. Electron. Lett. 31, 1042–1043 (1995)
S.I. Liu, Y.S. Hwang, Realisation of RL and CD impedances using a current feedback amplifier and its applications. Electron. Lett. 30, 380–381 (1994)
S.I. Liu, J.H. Tsay, Single resistance controlled sinusoidal oscillator using current feedback amplifier. Int. J. Electron. 80, 661–664 (1996)
S.I. Liu, C.C. Chang, D.S. Wu, Active-R sinusoidal oscillators using the CFA pole. Int. J. Electron. 77, 1035–1042 (1994)
Macromodel of AD844AN in PSPICE Library, Microsym Corpn., CA, USA (1992)
P.A. Martinez, J. Sabadell, C. Aldea, Grounded resistor controlled sinusoidal oscillator using CFOAs. Electron. Lett. 33, 346–348 (1997)
B.J. Maundy, A.R. Sarkar, S.J.G. Gift, A new design topology for low-voltage CMOS current feedback amplifiers. IEEE Trans. Circuits Syst. (II) Express Briefs 53, 34–38 (2006)
R.K. Nagaria, P. Venkateswaran, S.K. Sanyal, R. Nandi, New simple integrators and differentiators using current feedback amplifiers. J. Frequenz 57, 119–122 (2003)
R. Nandi, Tunable active-R oscillator using a CFA. IEICE Electron. Express 5, 248–253 (2008)
News update: Global Signal Processing Times (Internet Version), Jan. 2004
G. Palumbo, S. Pennisi, Current feedback amplifiers versus voltage operational amplifiers. IEEE Trans. Circuits Syst. (I) Fundam. Theory Appl. 48, 617–623 (2001)
S.K. Sanyal, U.C. Sarkar, R. Nandi, Increased time-constant dual-input integrators. IEEE Trans. Instrum. Meas. 39, 672–673 (1990)
A.K. Singh, R. Senani, Active-R design using CFOA-poles: New resonators, filters and oscillators. IEEE Trans. Circuits Syst. (II) 48, 504–511 (2001)
V.K. Singh, R.K. Sharma, A.K. Singh, D. Bhaskar, R. Senani, Two new canonic single-CFOA oscillators with single resistor controls. IEEE Trans. Circuits Syst. (II) 52, 675–679 (2005)
W. Surakampontorn, V. Riewruja, K. Kumwachara, K. Dejhan, Accurate CMOS-based current conveyors. IEEE Trans. Instrum. Meas. 40, 699–702 (1991)
A. Tammam, K. Hayatleh, J. Lidgey, Novel high performance current feedback opamps, in Proc. IEEE Int. Symp. Circuits Syst. (ISCAS), pp. 705–708 (2002)
C. Tomazou, J. Lidgey, Current feedback opamps: A blessing in disguise. IEEE Circuits Devices Mag. 10, 34–37 (1994)
D.S. Wu, S.I. Liu, Y.S. Hwang, Y.P. Wu, Multiphase sinusoidal oscillator using the CFOA pole. IEE Proc. Circuits Devices Syst. 142, 37–40 (1995)
A. Zeki, H. Kuntman, Accurate and high output impedance current mirror suitable for CMOS current output stages. Electron. Lett. 33, 1042–1043 (1997)
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Nandi, R., Bandyopadhyay, T.K., Sanyal, S.K. et al. Selective Filters and Sinusoidal Oscillators Using CFA Transimpedance Pole. Circuits Syst Signal Process 28, 349–359 (2009). https://doi.org/10.1007/s00034-008-9089-9
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DOI: https://doi.org/10.1007/s00034-008-9089-9