• DocumentCode
    1804074
  • Title

    A CMOS switched-capacitor fractional bandgap reference

  • Author

    Biederman, William ; Yeager, Daniel ; Alon, Elad ; Rabaey, Jan

  • Author_Institution
    Univ. of California, Berkeley, CA, USA
  • fYear
    2012
  • fDate
    9-12 Sept. 2012
  • Firstpage
    1
  • Lastpage
    4
  • Abstract
    An architecture for generating a voltage reference at a fraction of the silicon bandgap is proposed. It uses a two-phase switched-capacitor network to add multiples and fractions of VBE and ΔVBE to achieve a near zero temperature coefficient without the use of resistors or op-amps. The 0.0055mm2 circuit, implemented entirely on-chip in 65nm CMOS, produces a voltage of 423mV, has a measured σ of 2.2%, and consumes 138nA while operating at a supply as low as 750mV at -35°C.
  • Keywords
    CMOS integrated circuits; operational amplifiers; resistors; switched capacitor networks; CMOS switched-capacitor fractional bandgap reference; current 138 nA; near zero temperature coefficient; opamps; resistors; silicon bandgap; size 65 nm; two-phase switched-capacitor network; voltage 423 mV; voltage 750 mV; voltage reference; CMOS integrated circuits; Capacitors; Photonic band gap; Resistors; Switches; Temperature measurement; Voltage measurement;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Custom Integrated Circuits Conference (CICC), 2012 IEEE
  • Conference_Location
    San Jose, CA
  • ISSN
    0886-5930
  • Print_ISBN
    978-1-4673-1555-5
  • Electronic_ISBN
    0886-5930
  • Type

    conf

  • DOI
    10.1109/CICC.2012.6330568
  • Filename
    6330568
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1804074