ADI ADM3065EIEC静电放电(ESD)保护RS－485收发器解决方案
ADI公司的ADM3065E是3.0V-5.5VIEC静电放电(ESD)保护半双工RS-485收发器,适合在多点总线传输线路中进行 50 Mbps 高速双向数据通信,完全符合现场总线®标准.接触放电满足IEC 61000-4-2 ≥ ±12 kV ,空气放电满足IEC 61000-4-2 ≥ ±12 kV,而HBM ≥ ±30 kV,工作温度范围为−40℃ 至 +125℃ 及−40℃ 至 +85℃.主要用在工业现场总线,过程控制,楼宇自动化,现场总线网络和电机控制伺服驱动器和编码器.本文介绍了ADM3065E/ADM3066E主要特性,功能框图,半双工RS-485通信网络框以及评估板EVAL-ADM3065EEBZ和EVAL-ADM3065EEB1Z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 ADM3065E/ADM3066E feature a ¼ unit load input impedance, which allows up to 128 transceivers on a bus.
The ADM3065E/ADM3066E are half-duplex RS-485 transceivers, fully compliant to the Profibus® standard with increased 2.1 V bus differential voltage at VCC ≥ 4.5 V.
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