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Novel Design of Low Noise Preamplifier for Medical Ultrasound Transducers

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Abstract

A novel design of low noise amplifier for medical ultrasound transducers is described in this paper. Unlike conventional low noise preamplifiers, this design proposes a new circuit configuration which has electronically adjustable matching resistance that allows the preamplifier to be compatible with a variety of medical ultrasound transducers. The design employs current feedback operational amplifier to enhance the gain-bandwidth independence and improve the design slew rate. Simulation results show that the proposed design has very low output noise voltage spectral density and the level of this noise does not increase when its tunable matching resistance is increased or decreased.

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Authors and Affiliations

  1. Department of Biomedical Engineering, Faculty of Engineering, Jordan University of Science and Technology, P.O. Box 3030, 22110, Irbid, Jordan

    Mashhour Bani Amer

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  1. Mashhour Bani Amer
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Correspondence to Mashhour Bani Amer.

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Amer, M.B. Novel Design of Low Noise Preamplifier for Medical Ultrasound Transducers. J Med Syst 35, 71–77 (2011). https://doi.org/10.1007/s10916-009-9342-1

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  • DOI: https://doi.org/10.1007/s10916-009-9342-1

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