• DocumentCode
    1628630
  • Title

    A JFET input single supply operational amplifier with rail-to-rail output

  • Author

    Close, Joann P. ; Santos, Francisco

  • Author_Institution
    Analog Deives, Wilmington, MA, USA
  • fYear
    1993
  • Firstpage
    149
  • Lastpage
    152
  • Abstract
    A JFET input single supply amplifier functioning on supplies from +3 to +36 volts and 700 μA supply current is described. The common-emitter output stage´s saturation resistance of 40 ohms to the positive supply and 20 ohms to the negative supply allow rail-to-rail output voltages even with heavy load currents. An N-channel JFET folded cascode input stage provides a robust low noise front end with an input voltage range from 0.2 volts below the negative supply to 1 volt below the positive supply
  • Keywords
    operational amplifiers; 20 ohm; 3 to 36 V; 40 ohm; 700 muA; JFET input; N-channel JFET; bipolar output stage; feedback collector scheme; folded cascode input stage; open loop translinear scheme; rail-to-rail output; robust low noise front end; saturation resistance; single supply operational amplifier; two-stage pole-splitting topology; Operational amplifiers;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Bipolar/BiCOMS Circuits and Technology Meeting, 1993., Proceedings of the 1993
  • Conference_Location
    Minneapolis, MN
  • Print_ISBN
    0-7803-1316-X
  • Type

    conf

  • DOI
    10.1109/BIPOL.1993.617487
  • Filename
    617487