A new CMOS Differential OTRA Design for the Low Voltage Power Supplies in the Sub-Micron Technologies

In this study, a new CMOS differential OTRA topology is proposed. This topology can operate with a very low voltage power supply as \pm 0.6V. In this design, CMOS 0.13 m m STMicroelectronics technology transistor models are used for the simulations. The designed CMOS OTRA has a transresistance gain (Rm) of 7478 V/I with a 28.1 MHz bandwidth (-3 dB) and a transresistance unity-gain bandwidth of 2 GHz. To demonstrate the performance of the OTRA, designed low pass, high pass and band pass filters employing a single CMOS differential OTRA and passive elements are tested with SPICE simulation program to verify the theoretical results.

A new CMOS Differential OTRA Design for the Low Voltage Power Supplies in the Sub-Micron Technologies

In this study, a new CMOS differential OTRA topology is proposed. This topology can operate with a very low voltage power supply as \pm 0.6V. In this design, CMOS 0.13 m m STMicroelectronics technology transistor models are used for the simulations. The designed CMOS OTRA has a transresistance gain (Rm) of 7478 V/I with a 28.1 MHz bandwidth (-3 dB) and a transresistance unity-gain bandwidth of 2 GHz. To demonstrate the performance of the OTRA, designed low pass, high pass and band pass filters employing a single CMOS differential OTRA and passive elements are tested with SPICE simulation program to verify the theoretical results.

___

  • Thomas M. Frederiksen, William F. Davis, D.W. Zobel, A new current-differencing, single supply operational amplifier, IEEE Journal of Solid State Circuits, Vol. SC-6, No. 6, pp. 340-347, December 1971.
  • National Semiconductor Corporation: The LM3900: A new current-differencing quad of± input amplifiers, Linear Applications Data Book, Application Note 72 (AN-72), September 1972.
  • J.-J. Chen, H.-W. Tsao, C.-C. Chen, Operational transresistance amplifier using CMOS technology, Electronics Letters, Vol. 28, No. 22, pp. 2087-2088, October 1992.
  • J.-J. Chen, H.-W. Tsao, S.-I. Liu, W. Chiu, Parasitic-capacitance-insensitive current-mode filters using opera- tional transresistance amplifiers, IEE Proc. Circuits Devices System, Vol. 142, No. 3, pp.186-192, June 1995.
  • Khaled N. Salama, Ahmed M. Soliman, CMOS operational transresistance amplifier for analog signal processing, Microelectronics Journal, Vol.30, No.9, pp.235-245, March 1999.
  • Khaled N. Salama, Ahmed M. Soliman, Active RC applications of the operational transresistance amplifier, Frequenz, Vol. 54, No.7-8, pp.171-176, July/August 2000.
  • H. Elwan, Ahmed M. Soliman, M. A. Ismail, CMOS norton amplifier-based digitally controlled VGA for low- power wireless applications, Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on , Vol.48, Issue: 3, pp. 245-254, March 2001.
  • G. Palmisano, S. Pennisi, Dynamic Biasing for True Low-Voltage CMOS Class AB Current-Mode Circuits, IEEE Transaction Circuits and Systems-II: Analog and Digital Signal Processing, Vol.47, No.12, pp. 1569-1575, December 2000.
  • Guiseppe Ferri, Willy Sansen, A Rail-to-Rail Constant-gm Low-Voltage CMOS Operational Transconductance Amplifier, IEEE Journal of Solid-State Circuits, Vol.32, No.10, pp. 1563-1567, October 1997.