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LDC3114: How to connect the unused channels

Part Number: LDC3114

Hello to all,

I have a question and cant find the answer in the documentation.

We are using the LDC3114 for a metal proximity detection and we have only channel in use.

How should we connect the other channels? Can we leave it open or ty it to ground over a capacitor or a resistor?

I have read, that we can turn off the unused channels, but my question is about the electrical connection on the pin.

Thanks a lot for any response.

Greetings Florian