And now that I remember, the OP wanted a 1 mm resolution, more or less. With an ordinary 8-bit ADC he'd get a 1.2 mm resolution, which sounds like a reasonable compromise for his application. And it would be far easier to implement than any of the other resolutions available.My memory was off. I thought it only came in 32 bit version; actually There is no 32 bit version. There's 12bit and 28 bit. yeah 12bit should be fine.