ADM3202-3222-1385

LowPower,3.3V,RS-232LineDrivers/ReceiversADM3202/ADM3222/ADM1385Rev.DInformationfurnishedbyAnalogDevicesisbelievedtobeaccurateandreliable.However,noresponsibilityisassumedbyAnalogDevicesforitsuse,norforanyinfringementsofpatentsorotherrightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.NolicenseisgrantedbyimplicationorotherwiseunderanypatentorpatentrightsofAnalogDevices.Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.OneTechnologyWay,P.O.Box9106,Norwood,MA02062-9106,U.S.A.Tel:[phone]©2006AnalogDevices,Inc.Allrightsreserved.FEATURES460kbpsdatarateSpecifiedat3.3VMeetsEIA-232Especifications0.1μFchargepumpcapacitorsLowpowershutdown(ADM3222andADM1385)PDIP,SOIC_N,SOIC_W,SSOP,andTSSOPoptionsUpgradeforMAX3222/MAX3232andLTC1385ESDprotectiontoIEC1000-4-2(801.2)onRS-232pins(ADM3202only)±8kV:contactdischarge±15kV:airgapdischargeAPPLICATIONSGeneral-purposeRS-232datalinkPortableinstrumentsPrinters,palmtopcomputers,PDAsGENERALDESCRIPTIONTheADM3202/ADM3222/ADM1385transceiversarehighspeed,2-channelRS-232/V.28interfacedevicesthatoperatefromasingle3.3Vpowersupply.Lowpowerconsumptionandashutdownfacility(ADM3222/ADM1385)makethemidealforbattery-poweredportableinstruments.TheADM3202/ADM3222/ADM1385partsconformtotheEIA-232EandCCITTV.28specificationsandoperateatdataratesupto460kbps.Fourexternal0.1μFchargepumpcapacitorsareusedforthevoltagedoubler/inverter,permittingoperationfromasingle3.3Vsupply.TheADM3222containsadditionalenableandshutdowncircuitry.TheENinputcanbeusedtothree-statethereceiveroutputs.TheSDinputisusedtopowerdownthechargepumpandtransmitteroutputs,reducingthequiescentcurrenttolessthan0.5μA.ThereceiversremainenabledduringshutdownunlessdisabledusingEN.TheADM1385containsadriverdisablemodeandacompleteshutdownmode.TheADM3202isavailableina16-leadPDIP,SOIC_W,andSOIC_N,aswellasaspace-saving16-leadTSSOP.TheADM3222isavailablein18-leadPDIPandSOIC_Wandin20-leadSSOPandTSSOP.TheADM1385isavailableina20-leadSSOP,whichispin-compatiblewiththeLTC1385CG.FUNCTIONALBLOCKDIAGRAMSC1+C2+C1–C2–VCCV–V+T1INT1OUTT2INT2OUTR1OUTR1INR2OUTR2INCMOSINPUTSEIA/TIA-232OUTPUTSCMOSOUTPUTSEIA/TIA-232INPUTS*T1T2R1R2+++0.1µF10V0.1µF10VGNDADM3202C30.1µF6.3V+3.3VINPUT+3.3VTO+6.6VVOLTAGEDOUBLER+6.6VTO–6.6VVOLTAGEINVERTERC50.1µF+C40.1µF10V+*INTERNAL5kΩPULL-DOWNRESISTORONEACHRS-232INPUT00071-001Figure1.C1+C2+C1–C2–VCCV–V+T1INT1OUTT2INT2OUTR1OUTR1INR2OUTENR2INSDCMOSINPUTSEIA/TIA-232OUTPUTSCMOSOUTPUTSEIA/TIA-232INPUTS*T1T2R1R2+++0.1µF10V0.1µF10VGNDADM3222C30.1µF6.3V+3.3VINPUT+3.3VTO+6.6VVOLTAGEDOUBLER+6.6VTO–6.6VVOLTAGEINVERTERC50.1µF+C40.1µF10V+*INTERNAL5kΩPULL-DOWNRESISTORONEACHRS-232INPUT00071-002Figure2.C1+C2+C1–C2–VCCV–V+T1INT1OUTT2INT2OUTR1OUTR1INR2OUTDDR2INSDCMOSINPUTSEIA/TIA-232OUTPUTSCMOSOUTPUTSEIA/TIA-232INPUTS*T1T2R1R2++0.1µF10V0.1µF10VGNDADM1385C30.1µF6.3V+3.3VINPUT+3.3VTO+6.6VVOLTAGEDOUBLER+6.6VTO–6.6VVOLTAGEINVERTERC50.1µF++C40.1µF10V+*INTERNAL5kΩPULL-DOWNRESISTORONEACHRS-232INPUT00071-003Figure3.ADM3202/ADM3222/ADM1385Rev.D|Page2of12TABLEOFCONTENTSFeatures..............................................................................................1Applications.......................................................................................1GeneralDescription.........................................................................1FunctionalBlockDiagrams.............................................................1RevisionHistory...............................................................................2Specifications.....................................................................................3AbsoluteMaximumRatings............................................................4ESDCaution..................................................................................4PinConfigurationsandFunctionDescriptions...........................5PinConfigurations(N,RN,RU,andRWPackages)................5PinConfigurations(RSandRUPackages)................................5TypicalPerformanceCharacteristics..............................................6GeneralDescription..........................................................................8CircuitDescription.......................................................................8HighBaudRate..............................................................................9OutlineDimensions.......................................................................10OrderingGuide..........................................................................12REVISIONHISTORY8/06—Rev.CtoRev.DChangestoTable1............................................................................3UpdatedOutlineDimensions.......................................................10ChangestoOrderingGuide..........................................................129/05—Rev.BtoRev.CUpdatedOutlineDimensions.......................................................10ChangestoOrderingGuide..........................................................1212/01—Rev.A