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  1. #1
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    ecg con ad620a

    can i replace op97..what should be the amplifier if I don’t use it!!

    •   Alt2nd June 2009, 11:55

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  2. #2
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    ad624ad ecg circuit

    Your Word document is empty.
    Please post your schematic as a GIF or PNG file type.



  3. #3
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    low noise opamp ecg

    I'm from Bangladesh..i am doing my final year thesis project..It is about vital signs monitor or patient monitor.so one part of our project is ECG .in our country we can't manage all the component that required for ECG circuit.i attested the circuit diagram.
    I have AD620A.but i cant manage OP97.
    I can't manage AD624AD.
    Availability of component in our country is very tough.
    so if you give me some idea about how do i solve out the problem briefly it ll be very helpful for me.
    thanking you,
    masba



    •   Alt4th June 2009, 08:36

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  4. #4
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    replace for op97

    Did you look at the datasheet for the OP97 opamp? It has extremely low input offset voltage and offset current.
    You could use an ordinary low noise opamp and trim the offset yourself with a trimpot.



  5. #5
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    ad624ad using ecg circuits

    would you please tel me the IC number of low noise opamp..if you mention a specific name it would be easier for me..



  6. #6
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    ad624ad ecg

    I do not know why you cannot buy any opamp that is made in the world like I can and I do not know which ones you can buy.

    There are many single low noise opamps made by Texas Instruments. The OPA134 is good and works from a supply as low as 5V.



    •   Alt5th June 2009, 16:54

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  7. #7
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    Re: ECG op97 problem

    alternative is in atached

    masba, you can order and get samples (few pieces) of many IC's directly from various manufacturers like Analog, National,Texas etc. for free.



  8. #8
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    ECG op97 problem

    Thanks Borber



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