JH. wrote: >>> V+ = VL = 30V >> And? V- = GND = 0V ? > > Well yes; actually I have V+ = VL = +15V, and V- = "GND"-Pin = -15V, but > that's equivalent to single supply 30V with VL = V+. > Given the feedback from Intersil, it makes me wonder if the Analog Devices spec is wrong with its VDD-GND spec of <=25V. -Dave