olemus
normaalhäiringu toime nõrgendamine
= suppressing the effect of normal mode voltage

näiteid
https://image.slidesharecdn.com/ltcltc2440audio-110313225842-phpapp01/95/ltc2440-high-speed-delta-sigma-adc-11-728.jpg

https://www.dataforth.com/signal-conditioner-normal-mode-rejection.aspx