Thank you Lefty,
i want to try with the Wheatstone bridge. I'm following the notation from wikipedia : Wheatstone bridge - Wikipedia
In this page there is the formula to calculate the voltage (Vg) that depends on Vsupply and the 4 resistor values. Following the schematics, Vg is the voltage between pin 2 (+out 2) and pin 5 (-out 3)....right?
The datasheet says that the sensor span is 80 mV, does it means that Vg(max) is 80 mV?
Thanks again!