Electronically-Controlled Current-mode second order Sinusoidal Oscillators Using MO-OTAs and Grounded Capacitors
Data Ram Bhaskar, Kasim Karam Abdalla, Raj Senani
DOI: 10.4236/cs.2011.22011   PDF    HTML     5,770 Downloads   10,930 Views   Citations


Five new electronically-controllable second order current-mode sinusoidal oscillators using three mul-ti-output operational transconductance amplifiers (MO-OTAs) and two grounded capacitors (GC) have been presented. Simulation results are included to confirm the theoretical analysis based upon CMOS OTAs implementable in 0.5 µm technology.

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D. Bhaskar, K. Abdalla and R. Senani, "Electronically-Controlled Current-mode second order Sinusoidal Oscillators Using MO-OTAs and Grounded Capacitors," Circuits and Systems, Vol. 2 No. 2, 2011, pp. 65-73. doi: 10.4236/cs.2011.22011.

Conflicts of Interest

The authors declare no conflicts of interest.


[1] T. Tsukutani, Y. Sumi and Y. Fukui, “Electronically Controlled Current-Mode Oscillators Using MO-OTAs and Grounded Capacitors,” Frequenz, Vol. 60, No. 11-12, 2006, pp. 220-223. doi:10.1515/FREQ.2006.60.11-12.220
[2] W. Tangsrirat, “ Current Differencing Transconductance Amplifier-Based Current-Mode Four-Phase Quadrature Oscillator,” Indian Journal of Engineering and Material Sciences, Vol. 14, No. 4, 2007, pp. 289-294.
[3] D. V. Kamat, P. V. A. Mohan and K. G. Prabhu, “ Novel First-Order and Second-Order Cur-rent-Mode Filters Using Multiple-Output Operational Amplifi-ers,” Circuits Syst Signal Process, Vol. 29, No. 3, 2010, pp. 553-576. doi:10.1007/s00034-010-9163-y
[4] M. T. Abuel-ma’atti, “New Minimum Componet Elec- tronically Tunable OTA-C Sinusoidal Oscillators,” Elec- tronics Letters, Vol. 25, No. 17,1989, pp. 1114-1115. doi:10.1049/el:19890747
[5] M. T. Abuelma’atti and M. H. Khan, “Grounded Capacitor Oscil-lators Using a Single Operationl Trans- conductance Amplifier,’’ Active and Passive Electronic Components, Vol. 19, No. 2, 1996, pp. 91-98.
[6] Y. Tao and J. K. Fidler, “Generation of Second-Order Single-OTA RC Oscillators,” IEE Proceedings of Circuits Devices Systems, Vol. 145, No. 4, 1998, pp. 271-277. doi:10.1049/ip-cds:19981872
[7] Y. Tao and J. K. Fidler, “Electronically Tunable Dual-OTA Second-Order Sinusoidal Oscillator/Filters with Non-interacting Controls: A Systematic Synthesis Approach,” IEEE Transactions on Circuits Systems I, Vol. 47, No. 2, 2000, pp. 117-129.
[8] V. Singh, “Equivalent Forms of Dual-OTA RC Oscillators with Application to Grounded-Capacitor Osci- llators,” IEE Proceedings of Circuits Devices Systems, Vol. 153, No. 2, 2006, pp. 95-99. doi:10.1049/ip-cds:20050099
[9] V. Singh, “Equivalent Forms of Single-Operational Transconductance Amplifier RC Oscillators with Appli- cation to Grounded-Capacitor Oscilla-tors,” IET Circuits Devices Systems, Vol. 4, No. 2, 2010, pp. 123-130. doi:10.1049/iet-cds.2009.0146
[10] B. Bhushan and R. W. Newcomb, “Grounding of Capacitors in Integrated Cir-cuits,” Electronics Letters, Vol. 3, No. 4, 1967, pp.148-149. doi:10.1049/el:19670114
[11] R. Senani, “Realization of a Class of Analog Signal Processing/Signal Generation Circuits: Novel Configura- tion Using Current-Feedback Op-Amps,” Frequenz, Vol. 52, No. 9-10, 1998, pp. 196-206. doi:10.1515/FREQ.1998.52.9-10.196
[12] H. S. Malvar and M. Luettgen, “Temperature Compensa- tion of OTA-Based Filters and Multipliers,” Electronics Letters, Vol. 23, No. 17, 1987, pp. 890-891. doi:10.1049/el:19870629
[13] W.-S. Chung, H.-W. Cha and K.-H. Kim, “Temperature- Stable VCO Based on Operational Transconductance Amplifiers,” Electronics Letters, Vol. 26, No. 22, 1990, pp. 1900-1901. doi:10.1049/el:19901223
[14] C. A. Karybakas, C. Kosmato-poulos and T. Laopoulos, “Improved Temperature Compensa-tion of OTAs,” Ele- ctronics Letters, Vol. 28, No. 8, 1992, pp. 763-764. doi:10.1049/el:19920482
[15] R. Senani, M. P. Tripathi, D. R. Bhaskar and A. K. Banerjee, “Systematic Generation of OTA-C Sinusoidal Oscillators,” Electronics Letters, Vol. 26, No. 18, 1990, pp. 1457-1459. doi:10.1049/el:19900935
[16] D. R. Bhaskar, M. P. Tripathi and R. Senani, “A Class of Three-OTA-Two-Capacitor Oscillators with Non-interac- ting Controls,” International Journal of Electronics, Vol. 74, No. 3, 1993, pp. 459-463. doi:10.1080/00207219308925849
[17] D. R. Bhaskar, M. P. Tripathi and R. Senani, “Systematic Derivation of All Possible Canonic OTA-C Sinusoidal Oscillators,” Journal of the Franklin Institute, Vol. 330, No. 5, 1993, pp. 885-903. doi:10.1016/0016-0032(93)90083-7
[18] R. Senani, “New Electronically Tunable OTA-C Sinusoidal Oscillator,” Elec-tronics Letters, Vol. 25, No. 4, 1989, pp. 286-287. doi:10.1049/el:19890199
[19] M. T. Abuelma’atti, “Two New Integrable Active-C OTA-Based Voltage (Current) Controlled Oscillators,” International Journal of Electronics, Vol. 66, No. 1, 1989, pp. 135-138. doi:10.1080/00207218908925369

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