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Low voltage low power CMOS current differencing buffered amplifier

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Abstract

The major goal of this work is to present a new CMOS realization for the current differencing buffered amplifier (CDBA). A design technique based on flipped voltage follower current sources is preferred to obtain a high performance CDBA. The proposed circuit can operate with the minimum supply voltages of ±0.6 V. It also consumes less power than its counterparts that have been reported so far. Moreover, the proposed CDBA has good voltage and current gain accuracies. For the simulations, UMC 0.18 μm CMOS process is used. The performance of the CDBA is verified with HSPICE. Finally, a second-order, allpass/notch filter configuration is proposed to show the performance and usefulness of the circuit. The results from HSPICE simulations are in remarkable agreement with the expected ones.

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Authors and Affiliations

  1. Faculty of Engineering, Department of Electrical and Electronics Engineering, Boğaziçi University, 34342, Bebek, Istanbul, Turkey

    Cem Cakir & Oguzhan Cicekoglu

  2. Faculty of Engineering, Department of Electronics and Communications Engineering, Dogus University, Acibadem, 34722, Kadikoy, Istanbul, Turkey

    Shahram Minaei

Authors
  1. Cem Cakir
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  2. Shahram Minaei
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  3. Oguzhan Cicekoglu
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Correspondence to Shahram Minaei.

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Cakir, C., Minaei, S. & Cicekoglu, O. Low voltage low power CMOS current differencing buffered amplifier. Analog Integr Circ Sig Process 62, 237–244 (2010). https://doi.org/10.1007/s10470-009-9350-6

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  • DOI: https://doi.org/10.1007/s10470-009-9350-6

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