Martin Larran wrote:
>
> Hi people!
>
>         Here is my problem: I4m using the 16C71 with the four A/D chanels to
>  measure magnetic field, temperature, etc. The supply is 5V and also the
> ref.
> for the A/D. As I use a symethrical(12,-12) PS for the Op. Amp. of the
> sensors,
> if something goes wrong with some sensor(like wire breaks), the Op.Amp
> will
> saturate blowing the A/D. So which is the best way to prevent this?
>         For now I4m using another Op. Amp.(Av=1) with single supply of 5V, to
> cut
> the "overvoltage" but I loose many mV.
>         Sure there is another simpler and more efficient way of doing it!
>
>         Thanks a lot
>
>                                                         Martin Larran
Hi just wondering why you do not use a diode or diodes in parallel with
the feedback resistor to clip the swing at n*.7v or did I miss something
                Tony M.
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