AD5144ABRUZ100 I think it is (phone autopredicted that so assume it's right!). I hadn't given the current handling much thought to be honest, but for the initial project I think the 5 odd volt limit should be fine - it definitely won't work for every pedal for that very reason. I got lucky in that the Guma Antique I plan on grafting this to uses 4 100k pots, 2 lin, 1log, 1 inverse log. These chips are +/- 20% tolerance, again I'm going from memory as it's been a few weeks since I selected them and haven't looked at anything other than the i2c section of the dataset and the pinout since, but if they are that's same as the ubiquitous 16mm Alpha pot that seems to be used in most every analogue pedal nowadays.