Is it suitable for AD7147/AD7147P to use metallic materials as the touch surface?
If appropriate, what are the precautions for material selection?
The AD7147/P are not designed to have their conductive (metalic) sensors touched directly (it will saturate them). Typically there is some insulation material covering the sensor (e.g. 0.5mm - 1mm…
What insulating materials can I use?
Any that's ~ 0.05mm - 5mm thick - e.g. electrical insulating tape if you wish.
How could I cover the metal material(sensor) with the insulated material, the printing…