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FDC2212: liquid level sensing

Guru 29720 points
Part Number: FDC2212
Other Parts Discussed in Thread: FDC1004

Hi Team,

My customer considers to design liquid level sensing application with FDC2212/4.

I found the following application note and there is "SHIELD" in Figure1.
http://www.tij.co.jp/jp/lit/an/snoa935a/snoa935a.pdf





Is the "SHIELD" assumed with FDC1004 because FDC2212/4 doesn't have shiled driver?
Is there any solution for the "SHIELD" with FDC2212/4 to prevent interference like human hand?
I believe I should select FDC1004 in this case but would like to confirm just in case.

Best Regards,
Yaita / Japan disty