I am using an AD8222 for a weight scale application. Is it possible to use the 2nd op amp in the AD8222 in a non inverting amplifier configuration? or is this not advised? If it is not advised, then is their a single op amp version of the AD8222? Also, I noticed that the AD8222 on specifies split rails. Does it not work on single supply rails? Or, you could use it, but it is not the best thing to do?