Design of Sinusoidal, Triangular, and Square wave Generator Using Current Feedback Operational Amplifier (CFOA)

-This paper presents the design of a sinusoidal, triangular, and square wave generator using a high speed current feedback operational amplifier (CFOA). A macro model for the CFOA is developed as well. The frequency of oscillation in all cases are derived and compared with the simulated values. The achieved frequency of oscillation for sinusoidal wave is 9.4 MHz to 15 MHz and the achieved frequency of oscillation for the triangular/rectangular wave is 6.75 MHz to 59.5 MHz. The advantage of using the current feedback operational amplifier is to get higher frequency of sinusoidal, triangular, and square wave.

[1]  Alain Fabre Insensitive voltage-mode and current-mode filters from commercially available transimpedance opamps , 1993 .

[2]  Muhammad Taher Abuelma'atti,et al.  Novel CFOA-based sinusoidal oscillators , 1997 .

[3]  Raj Senani,et al.  New CFOA-Based Single-Element-Controlled Sinusoidal Oscillators , 2006, IEEE Transactions on Instrumentation and Measurement.

[4]  Vinod Kumar Singh,et al.  Two new canonic single-CFOA oscillators with single resistor controls , 2005, IEEE Transactions on Circuits and Systems II: Express Briefs.

[5]  Khaled Hayatleh,et al.  Current-feedback operational amplifiers and applications , 1997 .

[6]  Shen-Iuan Liu,et al.  Sinusoidal oscillators with single element control using a current-feedback amplifier , 1994 .

[7]  Santiago Celma,et al.  Designing sinusoidal oscillators with current-feedback amplifiers , 1996 .

[8]  Vinod Kumar Singh,et al.  Novel single-resistance-controlled-oscillator configuration using current feedback amplifiers , 1996 .

[9]  Santiago Celma,et al.  Current feedback amplifier based sinusoidal oscillators , 1994 .

[10]  Vinod Kumar Singh,et al.  Comment: Synthesis of canonic single-resistance-controlled-oscillators using a single current-feedback-amplifier , 1996 .

[11]  Khaled Hayatleh,et al.  High CMRR current-feedback operational amplifier , 2003 .

[12]  D. L. Smith High speed operational amplifier architectures , 1993, 1993 Proceedings of IEEE Bipolar/BiCMOS Circuits and Technology Meeting.

[13]  Yin Fengyu Realization of R-L and C-D Impedances Using a Current-feedback Amplifier and Its Application , 2007 .

[14]  Yuh-Shyan Hwang,et al.  Realisation of R-L and C-D impedances using a current feedback amplifier and its applications , 1994 .

[15]  Ernest M. Kim,et al.  Active and non-linear electronics , 1996 .

[16]  Khaled Hayatleh,et al.  Current-feedback operational amplifier with high CMRR , 2003 .

[17]  Santiago Celma,et al.  Current feedback amplifiers based sinusoidal oscillators , 1994, Proceedings of IEEE International Symposium on Circuits and Systems - ISCAS '94.