Hello! Could you please clarify the charts for "absolute analog input current" and "differential analog Input current " in the datasheet http://www.analog.com/media/en/technical-documentation/data-sheets/AD7124-4.pdf
I thought that "differential" means difference between the input currents of any two analog inputs. So this is simply I(AINx) -I(AINy).. This leads to conclusion, that differential current can not be greater than absolute value of current (any of I(AINx) or I(AINy)). But if will take a closer look at the charts above, we'll see that [for example] differential input current for gain = 64 is more than 5 times greater than absolute value. How this could be ?