• DocumentCode
    2547254
  • Title

    A high dynamic range, high linearity CMOS current-mode image sensor for computed tomography

  • Author

    Steadman, Roger ; Vogtmeier, Gereon ; Kemna, Armin ; Quossai, Salaheddine Ibnou ; Hosticka, Bedrich J.

  • Author_Institution
    Philips Res. Labs., Aachen, Germany
  • fYear
    2005
  • fDate
    12-16 Sept. 2005
  • Firstpage
    415
  • Lastpage
    418
  • Abstract
    In this work, we show a high dynamic range current-mode detector for computer tomography application. A regulated current mirror structure has been implemented at pixel level that provides with 17 bits dynamic range and a noise floor below 3 pARMS. Non-linearity is kept below 2% and signal bandwidth is higher than 10 kHz. A test structure with 4×4 pixel array is presented is this paper. Both photodiode and current mode amplifier have been integrated into the same CMOS standard process.
  • Keywords
    CMOS image sensors; computerised tomography; current mirrors; current-mode circuits; photodiodes; CMOS current-mode image sensor; CMOS standard process; computed tomography; current mirror structure; current mode amplifier; current-mode detector; photodiode; Application software; CMOS image sensors; Computed tomography; Computer applications; Detectors; Dynamic range; Image sensors; Linearity; Mirrors; Noise level;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Solid-State Circuits Conference, 2005. ESSCIRC 2005. Proceedings of the 31st European
  • Print_ISBN
    0-7803-9205-1
  • Type

    conf

  • DOI
    10.1109/ESSCIR.2005.1541648
  • Filename
    1541648
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2547254