+ Post New Thread
Results 1 to 2 of 2
  1. #1
    Junior Member level 1
    Points: 1,557, Level: 9

    Join Date
    Oct 2004
    Posts
    15
    Helped
    0 / 0
    Points
    1,557
    Level
    9

    biopotencial

    I am working with a differencial biopotencial amplifier based on two coupled buffers and a common instrumentation amplifier.

    Why must be ac-coupled the bipotential amplifiers??

    Thanks

    •   AltAdvertisement

        
       

  2. #2
    Full Member level 5
    Points: 3,825, Level: 14
    Regnum's Avatar
    Join Date
    Jun 2004
    Location
    Hurlingham
    Posts
    262
    Helped
    19 / 19
    Points
    3,825
    Level
    14

    biopotencial

    Biopotentials are usually mounted on some DC voltage, depending on the kind of electrodes and electrolyte that you're using.
    You may use DC coupling with lower gain ampliflying at the 1st stage, so remove the DC voltage at the 2nd one.



--[[ ]]--