• DocumentCode
    877901
  • Title

    Using the weak inversion region to optimize input stage design of CMOS op amps

  • Author

    Comer, David J. ; Comer, Donald T.

  • Author_Institution
    Dept. of Electr. & Comput. Eng., Brigham Young Univ., Provo, UT, USA
  • Volume
    51
  • Issue
    1
  • fYear
    2004
  • fDate
    1/1/2004 12:00:00 AM
  • Firstpage
    8
  • Lastpage
    14
  • Abstract
    Operation of MOS devices in the strong, moderate, and weak inversion regions is considered. The advantages of designing the input differential stage of a CMOS op amp to operate in the weak or moderate inversion region are presented. These advantages include higher voltage gain, less distortion, and ease of compensation. Specific design guidelines are presented to optimize amplifier performance. Simulations that demonstrate the expected improvements are given.
  • Keywords
    MOS analogue integrated circuits; amplifiers; CMOS op amps; MOS devices; amplifier performance optimization; compensation; input stage optimization; low-distortion; voltage gain; weak inversion region; Bandwidth; Circuits; Design optimization; Frequency; Guidelines; Helium; MOS capacitors; MOS devices; Operational amplifiers; Threshold voltage;
  • fLanguage
    English
  • Journal_Title
    Circuits and Systems II: Express Briefs, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    1549-7747
  • Type

    jour

  • DOI
    10.1109/TCSII.2003.821517
  • Filename
    1263697
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=877901