Hi Sadoun, You use the same register bits in the Config Register 0 and set them to the other set of inputs. The analog inputs can only be connected to AIN0-AIN3. As you are using the AIN1 and AIN2 inputs for the first bridge, I will assume that you are using the AIN0/REFP1 and AIN3/REFN1 inputs for the reference inputs. I would suggest you use the same excitation voltage for both bridges and also use the REFP0/REFN0 inputs for the reference for both bridges. I would also suggest using the AIN0/AIN1 inputs for one bridge input and AIN2/AIN3 for the second bridge input. The first bridge input (AIN0/AIN1) would be 0000 in bits 7-4 of Config Register 0, and AIN2/AIN3 would be 0101. If you connect the reference to REFP0/REFN0, then you would make the Config Register 2 bits 7-6 to 01. Best regards, Bob B
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