AD5254 C++ control from Pic24F

Question Do ADI have sample C++ code and procedure for writing the values to the device AD5254 from a Pic24F via I2C, Answer: No C++. But We do have No-OS driver, hence one need to write your own wrapper around it. Please see our Github library link here. https://github.com/analogdevicesinc/no-OS/tree/main/drivers/potentiometer/ad525x

AD5254 - different VDD and I2C bus voltage

Question Is it possible to have VDD for the AD5254 set to +5V but run the I2C bus to the AD5254 at 3.3V ? Answer In the specifications section we specify that for VDD = 5V, the minimum logic high voltage required is 2.4V: In other words, 3.3V logic should work. We also have digiPOTs with dedicated VLOGIC pins where you can define the logic voltages, it works independently of the power supplies.

Do the AD5254 adjustable resistors have galvanic isolation?

Question Are the adjustable resistor connections (e.g. A0, B0, W0) galvanically isolated (separated) from the digital system ground (DGND/VSS) without any hard internal connections on the chip? Answer These terminals, A0, B0, W0 are not isolated. All the AD5254's digital and analog blocks share the same substrate.