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