Differential signal from Resistance bridge(P3). ADC is ADUC7060 Internal .Consideration 4-20mA Circuit ,the power dissipation very low.Can only use ADA4051-2 Build Differential signal amplify. The scheme is ok? In the debug,ADC1 ADC0 have 50HZ vpp 200mV Noise.Needs to go a step further filter?
How to filter out the noise（50Hz）.