Coupling Through AC Pins

There is a capacitive coupling through the Analog Comparator. Toggling the selected positive AC pin may affect the selected negative input pin and vice versa.

Work around

When the AC is disabled, configure AC.MUXCTRLA.MUXNEG to DAC or internal reference.

Affected Silicon Revisions

ATtiny214/ATtiny414
Rev. A Rev. B            
- -            
ATtiny814
Rev. A Rev. B            
X X            
Parent topic: AC - Analog Comparator