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Article Navigation >  Journal of University of Electronic Science and Technology of China  > 2014  >  43(2): 282-286

DU Yong-qian, ZHUANG Yi-qi, LI Xiao-ming, LIU Wei-feng. New Type of Low-Power Exponential Current Generator for VGA[J]. Journal of University of Electronic Science and Technology of China, 2014, 43(2): 282-286. doi: 10.3969/j.issn.1001-0548.2014.02.024
Citation: DU Yong-qian, ZHUANG Yi-qi, LI Xiao-ming, LIU Wei-feng. New Type of Low-Power Exponential Current Generator for VGA[J]. Journal of University of Electronic Science and Technology of China, 2014, 43(2): 282-286. doi: 10.3969/j.issn.1001-0548.2014.02.024
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New Type of Low-Power Exponential Current Generator for VGA

doi: 10.3969/j.issn.1001-0548.2014.02.024
  • 1.

    School of Microelectronics,Xidian University Xi'an 710071

  • Received Date: 2009-07-07
  • Rev Recd Date: 2013-10-02
  • Publish Date: 2014-04-15
  • A novel low-power exponential current generator used for VGA is proposed in this paper. This generator adopts a MOSFET biased in sub-threshold region to generate exponential current. To compensate the variation of process and temperature, a threshold detector and a system solution are proposed. The exponential current generator is verified in TSMC 0.18μm standard CMOS technology. Within a ±0.41 dB error, the dynamic range of the proposed exponential current generator is 30 dB. The power consumption is 11μW, and the minimum power source voltage is 0.9V.
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  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

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New Type of Low-Power Exponential Current Generator for VGA

doi: 10.3969/j.issn.1001-0548.2014.02.024
  • 1. School of Microelectronics,Xidian University Xi'an 710071
  • Received Date: 2009-07-07
  • Rev Recd Date: 2013-10-02
  • Publish Date: 2014-04-15

Abstract: A novel low-power exponential current generator used for VGA is proposed in this paper. This generator adopts a MOSFET biased in sub-threshold region to generate exponential current. To compensate the variation of process and temperature, a threshold detector and a system solution are proposed. The exponential current generator is verified in TSMC 0.18μm standard CMOS technology. Within a ±0.41 dB error, the dynamic range of the proposed exponential current generator is 30 dB. The power consumption is 11μW, and the minimum power source voltage is 0.9V.

DU Yong-qian, ZHUANG Yi-qi, LI Xiao-ming, LIU Wei-feng. New Type of Low-Power Exponential Current Generator for VGA[J]. Journal of University of Electronic Science and Technology of China, 2014, 43(2): 282-286. doi: 10.3969/j.issn.1001-0548.2014.02.024
Citation: DU Yong-qian, ZHUANG Yi-qi, LI Xiao-ming, LIU Wei-feng. New Type of Low-Power Exponential Current Generator for VGA[J]. Journal of University of Electronic Science and Technology of China, 2014, 43(2): 282-286. doi: 10.3969/j.issn.1001-0548.2014.02.024
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