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[原创] ADI ADM2867E5.7 kV RMS信号和电源隔离RS-485收发器解决方案

关键词:消费类电子 建筑物自动化 HVAC 工业应用 ADM2867E

时间:2020-06-09 13:09:44       来源:中电网

ADI公司的ADM2867E是配备±15 kV IEC ESD 的 5.7 kV RMS 信号和电源隔离式 RS-485/RS-422 收发器.ESD保护在RS-475A,B,Y和Z引脚,接触放电≥±12 kV IEC61000-4-2,空气放≥±15kV IEC61000-4-2,高速25Mbps数据速率(ADM2865E/ADM2867E),低速数据速率500kbps用来EMI控制(ADM2861E/ADM2863E).输入VCC电源3V-5.5V,逻辑VIO电源1.7V-5.5V,VSEL引脚可选择VISO 电源5V或3.3V, PROFIBUS和5V VISO兼容,宽敞工作温度−40℃ 到 +105℃,共模瞬态免疫力高,为250 kV/μs,支持196总线节点,器件具有短路保护,开路保护和浮动输入接收器自动防止故障性能.主要用在 VC网络,工业现场总线,建筑物自动化,公用事业网络和能量表. 中电网为您整理如下详细资料,本文介绍了ADM2867E主要特性,功能框图,电路连接图以及评估板EVAL-ADM2867EEBZ主要特性,电路图,材料清单和PCB设计图.

The ADM2867E and the pending products within this family (light blue at the top of each page and gray in text) are 5.7 kV rms signal and power isolated RS-485 transceivers. The devices passradiated emissions testing to the EN55032 Class B standard with margin on a 2-layer printed circuit board (PCB) using two smallexternal 0402 ferrites on isolated power and ground pins. Thedevice features an integrated, low electromagnetic interference(EMI), isolated dc-to-dc converter, which eliminates the need for an external isolated power supply. The isolation barrierprovides immunity to system level electromagnetic compatibility (EMC) standards. The family of isolator devices features ±12 kV cont..

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