JSTS:Journal of Semiconductor Technology and Science

  • 제12권1호
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  • Pages.88-98
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  • 2012
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  • 1598-1657(pISSN)
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  • 2233-4866(eISSN)
대한전자공학회 (The Institute of Electronics and Information Engineers)
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Bandwidth - Power Optimization Methodology for SFB Filter Design

  • 투고 : 2011.08.27
  • 발행 : 2012.03.31
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초록

In this paper, the relationship between the bandwidth (BW) and power efficiency of a source follower based (SFB) filter is quantitatively analyzed, and a design methodology for a SFB filter for optimized BW - power consumption is introduced. The proposed design methodology achieves a maximum BW at a target quality (Q) factor for the given power consumption constraint by controlling design factors individually. In order to achieve the target BW from the maximized BW, a tuning method is introduced. Through the proposed design methodology, a fourth order Butterworth filter was implemented in 0.18 ${\mu}m$ CMOS technology. The measured BW, power consumption, and IIP3 are 100 MHz, 33 ${\mu}W$, and 9 dBm, respectively. Compared with other filter structures, the measured results show high BW - power efficiency.

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참고문헌

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