Hello at all,
i make measurements in a powder conveyer where we have electrostatic discharge with more than 15kV,
which is killing the ad7747's signal-generator and CAP-inputs.
Inside the tank we use a sensor with three different isolated electrodes on potentials CIN+, CIN- and EXC.
I search for an esd protection circuit for the ad7747 inputs/outputs CIN+, CIN- and EXC.
Hope, that anyone knows a solution which is not influencing the measurement.