Docedison:
AS to voltage dividers has anyone considered that an op-amp can have less than unity gain, that they make great attenuators as well and handle +/- 15 Vin as well? at ANY input impedance? 10 ohms to a T ohm are readily possible.Bob
Non-inverting attenuation is easier as buffer followed by voltage divider. Attentuating op-amp configuration is inverting so has finite input impedance.