Noise Immunity
n BINARY
n 2 values 0,1
n 1 isolation band
n 1.6 volt isolation band
n Good noise imunity,
0.5 volt noise on
power no problem
n DECIMAL
n 10 values 0..9
n 9 isolation bands
n 0.32 volt isolation
bands
n 0.5 volt power noise
would destroy
readings