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Protection for over-voltage into DAQ/oscilloscopes

Discussion in 'Electronic Equipment' started by Hoi Wong, May 1, 2007.

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  1. Hoi Wong

    Hoi Wong Guest

    Most high frequency digitizers (>1Ghz) have low input voltage level such as
    1V to 5V. Is there any protection circuit so that I don't accidentally feed
    in too much voltage into the oscilloscopes and destroy them?

    I already blew up one channel of my HP 54110D by feeding 13V into it as I
    thought it was like other oscilloscopes.

    Thanks in advance.
     
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