• DocumentCode
    931293
  • Title

    Acoustic readout circuit system without highpass filter for hearing aid

  • Author

    Lee, H.Y. ; Luo, C.H.

  • Author_Institution
    Dept. of Electr. Eng., Nat. Cheng Kung Univ., Taiwan
  • Volume
    43
  • Issue
    12
  • fYear
    2007
  • Firstpage
    659
  • Lastpage
    660
  • Abstract
    A readout circuit system is designed for a hearing aid without a highpass filter. The system achieved an SNR of 42.3 dB and a third-order harmonic distortion ratio of 58 dB when the input voltage was 60 muV to attain output of 0.48 V. For 57.9 and 74.8 dB gains, the bandwidths were 60 Hz-106 kHz and 100 Hz-20 kHz, respectively. The 1.65 mm2 system chip consumes 222 muW in 0.35 mum CMOS process
  • Keywords
    amplifiers; hearing aids; low-pass filters; readout electronics; 0.35 micron; 0.48 V; 100E3 to 20 Hz; 222 muW; 57.9 dB; 60 muV; 60E3 to 106 Hz; 74.8 dB; CMOS process; acoustic readout circuit system; hearing aid;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el:20070416
  • Filename
    4237044
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=931293