A redundant current measurement to the current mirror Iprop signals is required. Two options are being considered:
1) A current-sense shunt on OUT1/OUT2, but board space, part count, and other constraints lead us to consider option 2.
2) Is putting a current-sense shunt resistor on the SRC pin to ground a viable idea so long as the Absolute Maximum Voltage rating for the SRC pin is not violated (+/- 0.3 V)?