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Union_UM3157_R01UM315710Low-VoltageSPDTAnalogSwitchUM3157SC70-6/SC88/SOT363GeneralDescriptionTheUM3157isanadvancedCMOSanalogswitchfabricatedwithsilicongateCMOStechnology.ItachievesverylowpropagationdelayandRDS(ON)resistanceswhilemaintainingCMOSlowpowerdissipation.Thesemakeitidealforportableandbatterypowerapplications.Theswitchconductssignalswithinpowerrailsequallywellinbothdirectionswhenon,andblocksuptothepowersupplylevelwhenoff.Break-before-makeisguaranteed.Theselectpinhasover-voltageprotectionthatallowsvoltagesaboveVCC,upto6.5Vtobepresentonthepinwithoutdamageordisruptionofoperationofthepart,regardlessoftheoperatingvoltage.ApplicationszzzzSample-and-HoldCircuitsBatterypoweredEquipmentA……