LT1990IS8#TRIC AMP DIFF +/-250V MCRPWR 8SOIC|LINEAR TECHNOLOGY|Lead All|RoHS Mixed LT1990IS8#PBF LT1990IS8#TRPBFIC AMP DIFF +/-250V MCRPWR 8SOIC|LINEAR TECHNOLOGY|Lead All|RoHS Mixed LT1990IS8#PBF