What would be the "correct" way to replace an analogue potentiometer with a microcontroller controlled digitalpotentiometer, when the require voltage is higher than what the chip can support?
In more detail: If I want to replace an analogue potentiometer for a 10 Vdc signal line with a digital potentiometer that only supports up to about 5 Vdc, what is the best way to achieve this ?
Is it a simple 5Vdc digital potentiometer with an opamp before/after to adjust the voltage accordingly ? Or...?
Please be specific - circuit diagrams for achieving this will be appreiciated. Basically, replace a basic manual potentiometer with a digital one, for a different voltage level.