Looking for some help clarifying the input current draw (e.g. impact on a reference voltage supply) for something like a mid-point supply on Vin- and a full-range swing at Vcc=12V (Vin+_min = 0V; Vin+_max = Vcc-2 = 10V; Vin- = fixed 5V)
Figure 4 shows the input current going exponential as the diff hits about 3V:
I realize that this shows an approx. differential input impedance of 320k, but want to be sure I understand the part's performance outside of that linear region at the center.
Thanks
