资源描述：
《ADIADM2795E5kVrms绝缘RS-485收发器解决方案》由会员上传分享，免费在线阅读，更多相关内容在工程资料-天天文库。
1、ADIADM2795E5kVrms绝缘RS•485收发器解决方案时间：2017-01-0616:50:11作者：ADI来源：中电网ADI公司的ADM2795E是5kVrms信号绝缘RS-485收发器.釆用ADI公司的iCoupler技术，集成了3路绝缘器,RS-485收发器和IEC电磁兼容(EMC)瞬态保护,IEC61000-4-5Level4浪涌保护,RS・485总线引脚保护电圧±4kV,RS-485接口引脚保护高达±15kV,工作温度-40°C到+125°C,主要用在加热，通风设备和空调(HVAC)网络，工业现场总线,建筑物自动化和公用事业网络•本文介绍了ADM2795E主要特
2、性，框图，几种应用测试图以及评估板EVAL-ADM2795EEBZ主要特性,电路图，材料清单和PCB设计图.TheADM2795Eisa5kVrmssignalisolatedRS-485transceiverthatfeaturesupto±42Vofac/depeakbusovervoltagefaultprotec-tionontheRS-485buspins.ThedeviceintegratesAnalogDevices,Inc.,iCouplertechnologytocombinea3-channelisolator,RS-485transceiver,andIECe
3、lectromagneticcompatibility(EMC)t「ansientprotect!oninasinglepackage.TheADM2795EisaRS-485/RS-422transceiverthatintegratesIEC61000-4-5Level4surgeprotection,allowingupto±4kVprotectionontheRS-485buspins(AandB).ThedevicehasIEC61000-4-4Level4EFTprotectionupto±2kVandIEC61000-4-2Level4ESDprotectionont
4、hebuspins,allowingthisdevicetowithstandupto±15kVonthetransceiverinterfacepinswithoutlatchingup.Thisdevicehasanextendedcommon-modeinputrangeof±25Vtoimprovedatacommunicationreliabilityinnoisyenvironments.TheADM2795Eiscapableofoperatingoverwidepowersupplyranges,witha1.7Vto5.5VVDD1powersupplyrange
5、,allowinginterfacingtolowvoltagelogicsupplies.TheADM2795EisalsofullyTIA/EIARS-485/RS-422compliantwhenoperatedovera3Vto5.5VVDD2powersupply.Thedeviceisfullycharacterizedoveranextendedoperatingtemperaturerangeof-40°Cto+125°C,andisavailableina16-lead,wide-bodySOICpackage・ADM2795E主要特性：5kVrmsisolate
6、dRS-485/RS-422transceiver±42Vac/depeakfaultprotectiononRS-485buspinsCertifiedLevel4EMCprotectiononRS-485A,BbuspinsIEC61000-4-5surgeprotection(±4kV)IEC61000-4-4electricalfasttransient(EFT)protection(±2kV)IEC61000-4-2electrostaticdischarge(ESD)protection±8kVcontactdischarge±15kVairdischargeIEC61
7、000-4-6conductedradiofrequency(RF)immunity(10V/mrms)CertifiedIEC61000-4-ximmunityacrossisolationbarrierIEC61000-4-2ESD,IEC61000-4-4EFT,IEC61000-4-5surge,IEC61000-4-6conductedRFimmunity,IEC61000-4-3radiatedimmunity,IEC61000-4-8magneticim
