INVERTING CURRENT FEEDBACK OPERATIONAL AMPLIFIER AND ITS APPLICATIONS TO MOS-C CIRCUIT REALIZATION

Abstract

In this paper, an active element called inverting current feedback operational amplifier (ICFOA) is described. CMOS implementations of ICFOA are included. It has been shown that this building block is very suitable for MOS-C realization of circuits. As the application examples, MOS-C implementation of Tow-Thomas biquad, Kerwin-Huelsman-Newcomb biquad, first order allpass filter and quadrature oscillator using ICFOA are presented. Theoretical analysis is verified by PSPICE simulations

Keywords

• Analog signal processing, Current conveyors, Current feedback operational amplifiers, MOS-C realization

TERSLENMİŞ AKIM GERİ BESLEMELİ İŞLEMSEL YÜKSELTEÇ VE MOS-C DEVRE GERÇEKLEMESİ UYGULAMALARI

Abstract

Bu çalışmada, terslenmiş akım geri beslemeli işlemsel yükselteç (TAGBİY) olarak isimlendirilen bir aktif eleman tanıtılmıştır. TAGBİY’in CMOS gerçeklemeleri verilmiştir. Bu yapı bloğunun, devrelerin MOS-C gerçeklemeleri için çok uygun olduğu gösterilmiştir. Uygulama örnekleri olarak TAGBİY kullanan Tow-Thomas ve Kerwin-Huelsman-Newcomb süzgeçleri ile birinci dereceden tüm geçiren süzgeç ve salıngaç devreleri sunulmuştur. Teorik analizler PSPICE benzetim sonuçları ile doğrulanmıştır

Keywords

• Analog sinyal işleme, Akım taşıyıcılar, Akım geri beslemeli işlemsel yükselteçler, MOS-C gerçekleme

References

1. C. Acar, M. S. Ghausi (1987): “Fully Integrated Active RC-filters Using MOS and Non- Balanced Structure”, International Journal of Circuit Theory and Applications, Cilt 15, s. 105–121.
2. I. A. Awad, A. M. Soliman (1999): “Inverting Second Generation Current Conveyors: the Missing Building Blocks, CMOS Realizations and Applications”, International Journal of Electronics, Cilt 86, s. 413–432.
3. H. P. Chen (2010): “Single CCII-Based Voltage-Mode Universal Filter”, Analog Integrated Circuits and Signal Processing, Cilt 62, s. 259–262.
4. W. Chiu, S. I. Liu, H. W. Tsao, J. J. Chen (1996): “CMOS Differential Difference Current Conveyors and Their Applications”, IEE Proceedings–Circuits, Devices and Systems, Cilt 143, s. 91–96.
5. I. S. Han, S. B. Park (1984): “Voltage-Controlled Linear Resistor by Two MOS Transistors and Its Application to Active RC Filter MOS Integration”, Proceedings of the IEEE, Cilt 72, s. 1655–1657.
6. I. Haritantis (1985): “General Method for Designing RC Harmonic Oscillators”, International Journal of Electronics, Cilt 58, s. 295–305.
7. M. A. İbrahim, H. Kuntman (2002): “High Linearity CMOS Differential Current Conveyor (DDCC)”, International Conference on Microelectronics, ss. 6–9.
8. M. A. İbrahim, H. Kuntman, S. Özcan, O. Suvak, O. Çiçekoğlu (2004): “New First-Order Inverting-Type Second-Generation Current Conveyor-Based All-Pass Sections Including Canonical Forms”, Electrical Engineering, Cilt 86, s. 299–301.

9. K. Manetakis, C. Toumazou (1996): “Current-Feedback Opamp Suitable for CMOS VLSI Technology”, Electronic Letters, Cilt 32, s. 1090–1092.
10. S. Minaei, E. Yüce, O. Çiçekoğlu (2006): “ICCII-Based Voltage-Mode Filter with Single Input and Six Outputs Employing Grounded Capacitors”, Circuits, Systems, and Signal Processing, Cilt 25, s. 559–566.
11. A. S. Sedra, G. W. Roberts, F. Gohh (1990): “The Current Conveyor: History, Progress and New Results”, IEE Proceedings Part G, Cilt 137, s. 78–87.
12. E. A. Sobhy, A. M. Soliman (2007): “Novel CMOS Realizations of the Inverting Second- Generation Current Conveyor and Applications”, Analog Integrated Circuits and Signal Processing, Cilt 52, s. 57–64.
13. A. M. Soliman (1996): “Applications of the Current Feedback Operational Amplifiers”, Analog Integrated Circuits and Signal Processing, Cilt 11, s. 265–302.
14. A. M. Soliman (2008): “The Inverting Second Generation Current Conveyors as Universal Building Blocks”, International Journal of Electronics and Communications (AEU), Cilt 62, s. 114–121.
15. C. Toumazou, F. J. Lidgey, D. G. Haigh (1990): “Analogue IC Design: the Current Mode Approach”, London, Peter Peregrinus.
16. Y. Tsividis, M. Banu, J. Khoury (1986): “Continuous-Time MOSFET-C Filters in VLSI”, IEEE Journal of Solid-State Circuits, SC-21, s. 15–30.