Good voltage buffers

Discussion in 'General Electronics Chat' started by giantimi, Jul 29, 2009.

  1. giantimi

    Thread Starter Member

    Jul 15, 2009
    14
    0
    Does anyone know of any good designs for voltage buffers? I need the gain to be at least 0.8 for the project I am doing.
     
  2. Renesis

    New Member

    Jul 14, 2009
    5
    0
    Op-amp with negative feedback?
     
  3. beenthere

    Retired Moderator

    Apr 20, 2004
    15,815
    282
    An op amp configured as a voltage follower will give you a gain of 1. What are the requirements?
     
  4. giantimi

    Thread Starter Member

    Jul 15, 2009
    14
    0
    the only requirement is that the supply voltage be 1.25 volts.
     
  5. AdrianN

    Active Member

    Apr 27, 2009
    97
    1
    If the power supply is 1.25V, what is the signal amplitude?
     
  6. steveb

    Senior Member

    Jul 3, 2008
    2,433
    469
    Surely, that is not the only requirement! :eek:
     
  7. giantimi

    Thread Starter Member

    Jul 15, 2009
    14
    0

    I am expecting a ramp signal. It starts at about 1.248 volts and should decrease to about 100mV to 200mV.
     
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