Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)

The Institute of Electronics and Information Engineers (대한전자공학회)
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Current-Mode Integrator using OA and OTAs and Its Applications

  • Katesuda Klahan (Faculty of Engineering and Research Center for Communication and Information Technology(ReCCIT), King Mongkut′s Institute of Technology Ladkrabang(KMITL)) ;
  • Worapong Tangsrirat (Faculty of Engineering and Research Center for Communication and Information Technology(ReCCIT), King Mongkut′s Institute of Technology Ladkrabang(KMITL)) ;
  • Teerasilapa Dumawipata (Department of Industrial Electrical Technology(IET), Faculty of Engineering, King Mongkut's Institute of Technology North-Bangkok(KMITNB)) ;
  • Walop Surakampontorn (Faculty of Engineering and Research Center for Communication and Information Technology(ReCCIT), King Mongkut′s Institute of Technology Ladkrabang(KMITL))
  • Published : 2002.07.01
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Abstract

A circuit building block for realizing a continuous-time active-only current-mode integrator is presented. The proposed integrator is composed only of internally compensated type operational amplifier (OA) and operational transconductance amplifiers (OTAs). The integrator is suitable for integrated circuit implementation in either bipolar or CMOS technologies, since it does not require any external passive elements. Moreover, the integrator gain can be tuned through the transconductance gains of the OTAs. Some application examples in the realization of current-mode network functions using the proposed current-mode integrator as an active element are also given.

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