• DocumentCode
    2176443
  • Title

    Techniques for maximizing input handling and improving linearity of gain interpolating VGAs

  • Author

    El-Shennawy, Mohammed ; Joram, Niko ; Ellinger, Frank

  • Author_Institution
    Chair for Circuit Design and Network Theory, Technische Universität Dresden 01062, Dresden, Germany
  • fYear
    2015
  • fDate
    June 29 2015-July 2 2015
  • Firstpage
    1
  • Lastpage
    4
  • Abstract
    This work presents gain interpolating variable gain amplifier (VGA) design aspects. A technique is introduced to improve the VGA input handling capability from a few hundred millivolts to rail-to-rail without affecting any other performance parameters and with low complexity. An additional technique is proven by hand analysis and simulations to reduce the 3rd order intermodulation products (IM3) of the VGA by 4dB. The VGA is designed in an IBM 0.13μm BiCMOS 7LM technology. It has a 56.5dB gain control range and draws 1.76mA from a 3V supply.
  • Keywords
    Attenuators; Gain; Gain control; Interpolation; Linearity; Resistors; Voltage control; Gain control; amplifiers; attenuators; feedback circuits; interpolation;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Ph.D. Research in Microelectronics and Electronics (PRIME), 2015 11th Conference on
  • Conference_Location
    Glasgow, United Kingdom
  • Type

    conf

  • DOI
    10.1109/PRIME.2015.7251079
  • Filename
    7251079
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2176443