ADI ADM3065E半双工RS－485收发器解决方案
ADI公司的ADM3065E是3.0V-5.5V IEC ESD保护的RS-485收发器,其总线引脚上能经受住±12 kV接触放电,IEC 61000-4-2≥±12 kV 空气放电,HBM ≥ ±30 kV,数据速率50Mbps,完全符合Profibus®标准,扩展温度到125℃ ,半双工作,可连接多达128个节点到总线,主要用在工业现场总线,过程控制,建筑物自动化,Profibus网络以及马达控制伺服驱动和编码器.本文介绍了ADM3065E主要特性,框图和应用电路,以及评估板EVAL-ADM3061EEBZ和EVAL-ADM3061EEB1Z主要特性,电路图,材料清单和PCB设计图.
The ADM3065E is a 3.0 V to 5.5 V, IEC electrostatic discharge (ESD) protected RS-485 transceiver, allowing the device to withstand ±12 kV contact discharges on the transceiver bus pins without latch-up or damage. The ADM3066E features a VIO logic supply pin allowing a flexible digital interface capable of operating as low as 1.62 V.
The ADM3065E/ADM3066E are suitable for high speed, 50 Mbps, bidirectional data communication on multipoint bus transmission lines.
The ADM3061E/ADM3065E/ADM3066E feature a ¼ unit load input impedance, which allows up to 128 transceivers on a bus. The ADM3061E models offer all of the same features as the ADM3065E models, but at a low 500 kbps data rate suitable for operation over long cable runs.
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