제어로봇시스템학회:학술대회논문집

Institute of Control, Robotics and Systems (제어로봇시스템학회)
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Analog multiplier using operational amplifier

  • Petchmaneelumka, Wandee (Department of Control Engineering, Faculty of Engineering, King Mongkut's Institute of Technology Ladkrabang) ;
  • Songsataya, Kiettiwan (Department of Control Engineering, Faculty of Engineering, King Mongkut's Institute of Technology Ladkrabang) ;
  • Riewruja, Vanchai (Department of Control Engineering, Faculty of Engineering, King Mongkut's Institute of Technology Ladkrabang) ;
  • Julsereewong, Prasit (Department of Instrumentation Engineering, Faculty of Engineering, King Mongkut's Institute of Technology Ladkrabang)
  • Published : 2005.06.02
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Abstract

In this article, presents an analog multiplier using a general-purpose operational amplifier (opamp). The realization method is based on the quarter-square technique, which utilize the square-law characteristic of the class AB output stage of the opamp. The experimental results verifying the proposed multiplier performances are also included. The linearity error and the total harmonic distortion is about 0.8% and 1.6%, respectively.

Keywords