Hi Expert,
According to the chpter2.7 on https://www.tij.co.jp/jp/lit/an/sprack7b/sprack7b.pdf,
VDDA for unused peripheral should be connected to 1.8 V through a common filter element.
So that means, some VDDAs for unused peripherals can be connected to 1.8V through "same" filter element?
Thanks and Best regards,
HaTa.