Proceedings of the IEEK Conference (대한전자공학회:학술대회논문집)

The Institute of Electronics and Information Engineers (대한전자공학회)
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The simulated floating inductor using of fully-differential OTAs and its application to a ladder-type third-order elliptic low-pass filter

  • Lee, Ju-Chan (Dept. of Electronic Eng., Graduate School, Chongju Univ.) ;
  • Lee, Jang-Hyuck (Dept. of Electronic Eng., Graduate School, Chongju Univ.) ;
  • Park, Hee-Jong (Dept. of Electronic Eng., Graduate School, Chongju Univ.) ;
  • Shin, Hee-Jong (Dept. of Electronic Eng., Graduate School, Chongju Univ.) ;
  • Park, Ji-Mann (ETRI) ;
  • Cha, Hyeong-Woo (School of Electronic, Information & Communication, Semiconductor Eng., Chongju Univ.) ;
  • Chung, Won-Sup (School of Electronic, Information & Communication, Semiconductor Eng., Chongju Univ.)
  • Published : 2000.07.01
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Abstract

Novel simulated floating inductor (SFI) using fully-differential operational transconductance amplifier (FOTA) is presented. The SFI only consists of two FOTA and a capacitor. A ladder-type third-order elliptic low-pass filter is also presented for the SFI’s application. The theory of operations described and the simulation results are used to verify theoretical predictions. The SFI shows close agreement between predicted behavior and simulation performance. The simulation results that the SFI have The temperature coefficient of-179 ppm/$^{\circ}C$ and Q factor of 120 at 200kHz at supply voltage ${\pm}$5 V.

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