ISO7420E,ISO7420FE,ISO7420FCCISO7421E,ISO7421FE,ISO7421FCC
SLLSE45D–DECEMBER2010–REVISEDDECEMBER2011
Low-PowerDualChannelDigitalIsolators
CheckforSamples:ISO7420E,ISO7420FE,ISO7420FCC,ISO7421E,ISO7421FE,ISO7421FCC
FEATURES
SignalingRate>50Mbps
ForDeviceswithSuffixF,OutputisLowin
DefaultMode
LowPowerConsumption:TypicalICCper
Channel(3.3VSupplies):
–ISO7420:1.4mAat1Mbps,2.5mAat
25Mbps
–ISO7421:1.8mAat1Mbps,2.8mAat
25Mbps
LowPropagationDelay:7nsTypical(E-Grade)
LowPulseSkew:200psTypical(E-Grade)
WideTARangeSpecified:–40°Cto125°C
50KV/μsTransientImmunity,Typical
IsolationBarrierLife:>25Years
Operatesfrom3Vto5.5VSupplyLevels
NarrowBodySOIC-8PackageAPPLICATIONS Opto-CouplerReplacementin:–IndustrialFieldBus–ProfiBus–ModBus–DeviceNet DataBuses–ServoControlInterface–MotorControl–PowerSupplies–BatteryPacks SAFETYANDREGULATORYAPPROVALS
3000VRMS/4242VPKIsolationperDINEN60747-5-2(VDE0884Part2)2.5KVRMSIsolationfor1minuteperUL1577CSAComponentAcceptanceNotice#5AIEC60950-1andIEC61010-1EndEquipmentStandardsAllAgenciesApprovalsCompleted
DESCRIPTION
ISO7420xandISO7421xprovidegalvanicisolationupto2500VRMSfor1minuteperULand4242VPKperVDE.
Thesedeviceshavetwoisolatedchannels.Eachchannelhasalogicinputandoutputbufferseparatedbya
silicondioxide(SiO2)edinconjunctionwithisolatedpowersupplies,thesedevicesprevent
noisecurrentsonadatabusorothercircuitfromenteringthelocalgroundandinterferingwithordamaging
sensitivecircuitry.ThesuffixFindicateslow-outputoptioninfail-safeconditions(seeTable1).E-gradedevices
-gradedeviceshaveintegrated
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INA
INB
GND118ISO7421D Package(Top View)VCC2OUTAOUTBGND2VCC1OUTAINBGND18VCC2INAOUTBGND223
4765765
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Instrumentssemiconductorproductsanddisclaimerstheretoappearsattheendofthisdatasheet.
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