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Op Amp Choice for EMG project

  1. Jan 31, 2014 #1
  2. jcsd
  3. Jan 31, 2014 #2


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    Science Advisor

    It's impossible to say without knowing something about your requirements. The TL072 will likely be much lower noise than the 741 and it has twice the bandwidth.

    The safest thing to do is try to buy a TL072. They are in stock for about a buck a piece.

    http://www.mouser.com/Search/ProductDetail.aspx?qs=E2%2FxqS9xjzrrJtzLbEfvqg%3D%3D [Broken]
    Last edited by a moderator: May 6, 2017
  4. Jan 31, 2014 #3


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    Staff: Mentor

    You may need to use the FET-based opamp in order to keep your bias currents low enough to meet UL 544 Medical Device safety standards.

    What power supply voltages are you using? The older opamps like these two don't have very good common-mode range characteristics at their inputs and output (they are not rail-to-rail opamps).
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