Calculation of Third-Order Harmonic Distortion in an Operational Transconductance Amplifier

محورهای موضوعی : Majlesi Journal of Telecommunication Devices

sanaz iraji ¹ , habib ullah adrang ²

1 - Islamic Azad University, Nur
2 -

تاریخ دریافت : 1393/09/14 تاریخ پذیرش : 1393/09/23 تاریخ انتشار : 1393/12/10

کلید واژه: en,

چکیده مقاله :

Due to its nonlinear behavior, operational transconductance amplifier causes substantial distortion in transfer conductance that weakens the intended signal. Analyzing Taylor series, this paper proposes a method to estimate third-order harmonic distortion. As a result, an equation to calculate output current is proposed. Moreover, third-order harmonic distortion is explained in an equation in terms of different parameters. Behavioral simulation was used to investigate harmonic distortion characteristics for the purpose of investigating the validity of the results. Final results show that analytical relationships and the simulation results are perfectly matched.              

منابع و مأخذ:

[1] Farzan Rezaei and Seyed Javad Azhari, A High Linear Operational Transconductance Amplifier (OTA) with High Common Mode Rejection Ratio, International Conference on Signal Acquisition and Processing _ IEEE Computer Society ,2010, 18-22

[2] R. L. Geiger and E. Sanchez-Sinencio, Active filter design using operational transconductance amplifiers: A tutorial , IEEE Circuit and Device Magazine, vol1, pp. 20-32, Mar. 1985

[3] ‌‌ X.Zhu and Y.Sun,  Low-Distortion Low-Voltage Operational Transconductance Amplifier , Electronics Leters ,No 25,2008

[4] Arun Ramachandran,  Nonlinearity and Noise Modeling of Operational Transconductance Amplifiers for Continuous Time Analoge Filtar, A thesis submitted to the Office of Graduate Studies of Texas A&M University, May 2005

[5] Achim Gartez, Operational Transconduction Amplifiers ,1-5, july 6,2008

[6] B. Razavi,  Design of Integrated Circuit for Optical Communications, First Ed., New York: McGraw Hill Co., 2003

[7] D. Johns and K. W. Martin,Analog Integrated Circuit Design , John Wiley and Sons Canada, Limited, 1996

[8] Pietro Monsurro and Salvatore Pennisi, Linearization Technique for Source Degenerated CMOS Diffrential Transconductors,  IEEE Transactions on Circuits and Systems, No10, 848-852,2007

[9] Ko- Chi Kuo and Adrian Leuciuc,  A linear MOS Transconductor Using source degeneration and Adaptive Biasing ,IEEE Transactions on Circuits and Systems, No.10 , 937-943, 2001

[10] Artur Lewinski and Jose Silva- Martinez,  A High Frequency Transconductor Using a Robust Nonlinearity Cancellation, IEEE Transactions on Circuits and Systems, No9 ,896-900,2006

[11] Tuan Vu Cao, Dag T. Wisland, Tor Sverre Lande and Farshad Moradi, Low-Power, Enhanced-Gain Adaptive-Biasing-based Operational Transconductance Amplifiers , IEEE Nanoelectronics group, Department of Informatics University of Oslo ,2009

[12] YouZheng, Operational Transconductance Amplifier for Gigahertz Application, A thesis submitted to the Department of Electrical and Computer Engineering, Queen’s University, September, 2008

[13] Tien.Yulo and Chung Hung, A Wide Tuning Range Gm-C Continuous-Time Analog Filter, IEEE Transactions on Circuits and Systems, No9 ,896-900, 2006