isolation amplifier using optocoupler and op amp

Discussion in 'General Electronics Chat' started by vinodquilon, May 20, 2010.

  1. vinodquilon

    vinodquilon Thread Starter Member

    Joined:
    Dec 24, 2009
    234
    0
    Can anybody give circuit of isolation amplifier using optocoupler and op amp ​
     
    #1
  2. SgtWookie

    SgtWookie Expert

    Joined:
    Jul 17, 2007
    22,158
    1,678
    Well, optocouplers generally aren't very linear - they're either ON, or struggling to turn off. This isn't exactly the case, but once you've fiddled around with optocouplers/optoisolators for awhile you will find that the turn-off time can seem to be an eternity.

    If it's an option, convert the analog data to digital, and then send it through an optocoupler/optoisolator. You'll eliminate many problems by doing that.
     
    #2
  3. nsaspook

    nsaspook Senior Member

    Joined:
    Aug 27, 2009
    1,706
    583
    #3
Loading...