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CMOS Differential-Mode Exponential Voltage-To-Current Converter

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Abstract

A CMOS differential-mode exponential voltage-to-current converter is presented which is based on the approximated Taylor's series expansion. The proposed circuit has been fabricated in a 0.5μm N-well CMOS process. Experimental results show that the output dynamic range of the proposed differential-mode exponential voltage-to-current converter can be 15dB while the nonlinear error is less than 1.35%. The experimental results are given to demonstrate the proposed circuits.

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Authors and Affiliations

  1. Department of Electrical Engineering and Graduate Institute of Electronics Engineering, National Taiwan University, Taipei, Taiwan, R.O.C., 10617

    Weihsing Liu & Shen-Iuan Liu

  2. Department of Electronic Engineering, Tung Nan Institute of Technology, Taipei, Taiwan, R.O.C., 22202

    Shui-Ken Wei

Authors
  1. Weihsing Liu
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  2. Shen-Iuan Liu
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  3. Shui-Ken Wei
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Correspondence to Shen-Iuan Liu.

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Liu, W., Liu, SI. & Wei, SK. CMOS Differential-Mode Exponential Voltage-To-Current Converter. Analog Integr Circ Sig Process 45, 163–168 (2005). https://doi.org/10.1007/s10470-005-4009-4

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  • DOI: https://doi.org/10.1007/s10470-005-4009-4

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