AD680ARIC VREF SERIES PREC 2.5V 8-SOIC|ANALOG DEVICES INC||RoHS Mixed AD680ARZ AD680AR-REELIC VREF SERIES PREC 2.5V 8-SOIC|ANALOG DEVICES INC||RoHS Mixed AD680ARZ-REEL7 AD680AR-REEL7IC VREF SERIES PREC 2.5V 8-SOIC|ANALOG DEVICES INC||RoHS Mixed AD680ARZ-REEL7