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Novel Ultra-Low-Power Class AB CCII+ Based on Floating-Gate Folded Cascode OTA

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Abstract

In this paper, a novel low-voltage ultra-low-power class AB current conveyor of the second generation based on folded cascode operational transconductance amplifier OTA with floating-gate differential pairs is presented. The main features of the proposed conveyor are design simplicity and rail-to-rail input voltage range at a low supply voltage of ±0.5 V. The proposed conveyor has a reduced power consumption of only 10 μW. Due to these features, the proposed conveyor could be successfully employed in a wide range of low-voltage low-power analog signal processing applications. PSpice simulation results using the 0.18 μm CMOS technology from TSMC are included to prove the results. As an example of application, a current-mode quadrature oscillator is designed and its functionality is proved by simulation.

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Authors and Affiliations

  1. Department of Microelectronics, Brno University of Technology, Technicka 10, Brno, Czech Republic

    Fabian Khateb & Nabhan Khatib

  2. Department of Telecommunications, Brno University of Technology, Purkyňova 118, Brno, Czech Republic

    David Kubánek

Authors
  1. Fabian Khateb
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  2. Nabhan Khatib
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  3. David Kubánek
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Correspondence to Fabian Khateb.

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Khateb, F., Khatib, N. & Kubánek, D. Novel Ultra-Low-Power Class AB CCII+ Based on Floating-Gate Folded Cascode OTA. Circuits Syst Signal Process 31, 447–464 (2012). https://doi.org/10.1007/s00034-011-9340-7

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  • DOI: https://doi.org/10.1007/s00034-011-9340-7

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