• DocumentCode
    3694064
  • Title

    Low noise front-end amplifier design for medical ultrasound imaging applications

  • Author

    Surya Sharma;Trond Ytterdal

  • Author_Institution
    Department of Electronics and Telecommunication, Norwegian University of Science and Technology, Trondheim, Norway
  • fYear
    2012
  • Firstpage
    12
  • Lastpage
    17
  • Abstract
    This paper describes the design of a low-noise amplifier for ultrasound receiver application. The receiver consists of a transimpedance amplifier (TIA) followed by a current feedback amplifier (CFA) and an output buffer stage to drive a 75Ω coaxial cable. The design is optimized in terms of noise and bandwidth for capacitive micromachined ultrasonic transducer (CMUT). Amplifier design issues such as achieving low noise and high linearity along with small input impedance are also discussed. The amplifier is designed using AMS 180nm technology and achieves a noise figure of 3.2dB. The amplifier has an input impedance of 200Ω for bandwidth of 100MHz, dynamic range of 51dB and total harmonic distortion (THD) of less than 0.4% for full scale input.
  • Keywords
    "Bandwidth","Impedance","Noise figure","Receivers","Ultrasonic imaging","Dynamic range","Transistors"
  • Publisher
    ieee
  • Conference_Titel
    VLSI and System-on-Chip, 2012 (VLSI-SoC), IEEE/IFIP 20th International Conference on
  • Print_ISBN
    978-1-4673-2658-2
  • Type

    conf

  • DOI
    10.1109/VLSI-SoC.2012.7332069
  • Filename
    7332069
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3694064