Other Parts Discussed in Thread: BUF802
Tool/software:
Hi, I have a project with BUF802 where I need to use a digital potentiometer with I2C and 1 channel to select the bias current resistor.
The problem is that uC and Digital Potentiometer would be reference to GND with their own 3V3 power supply because of the I2C communication between them.
The problem is that R_Bias pin from the BUF802 is connected to the negative power supply.
Looking the simplified schematic it seems that this will not be possible, as one side of the IC is connected to GND.
And also R_Bias must be connected to the negative rail of the opamp.
Do you have another IC that would be suitable for the application?
What would be your recommendation on this case?
Thank you
