• DocumentCode
    2569119
  • Title

    A Micropower Chopper-Stabilized Operational Amplifier using a SC Notch Filter with Synchronous Integration inside the ContinuousTime Signal Path

  • Author

    Burt, Ryan ; Zhang, Juyong

  • Author_Institution
    Texas Instruments, Tucson, AZ
  • fYear
    2006
  • fDate
    6-9 Feb. 2006
  • Firstpage
    1388
  • Lastpage
    1397
  • Abstract
    A micropower chopper-stabilized opamp uses an SC notch filter with synchronous integration inside the CT signal path to eliminate chopping noise. Characteristics include rail-to-rail I/O, 15muA supply current at 1.8 to 5.5V, 2muV offset, 55nV/radicHz noise, 350kHz GBW, and a chopping frequency of 125kHz. The die area is 0.7mm2 using 0.6mum CMOS
  • Keywords
    choppers (circuits); notch filters; operational amplifiers; 1.8 to 5.5 V; 125 kHz; 15 mA; 350 kHz; CT signal path; SC notch filter; chopping noise; micropower chopper; operational amplifier; synchronous integration; Bandwidth; Choppers; Circuits; Filters; Frequency; Noise figure; Noise level; Noise reduction; Operational amplifiers; Topology;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Solid-State Circuits Conference, 2006. ISSCC 2006. Digest of Technical Papers. IEEE International
  • Conference_Location
    San Francisco, CA
  • ISSN
    0193-6530
  • Print_ISBN
    1-4244-0079-1
  • Type

    conf

  • DOI
    10.1109/ISSCC.2006.1696188
  • Filename
    1696188
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2569119