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Maxim产品 - MAX3480EA介绍

MAX3480EA - ±15kV ESD保护、隔离型、3.3V、RS-485/RS-422数据接口

MAX3480EA是Maxim美信半导体公司的一款传感器与传感器接口产品，MAX3480EA是±15kV ESD保护、隔离型、3.3V、RS-485/RS-422数据接口，本站介绍了MAX3480EA的封装应用图解、特点和优点、功能等，并给出了与MAX3480EA相关的Maxim元器件型号供参考。

MAX3480EA - ±15kV ESD保护、隔离型、3.3V、RS-485/RS-422数据接口 - 传感器与传感器接口 - Maxim美信半导体高性能芯片品质 - 美信半导体

产品概述

The MAX3480EA/MAX3480EB are electrically isolatedRS-485/RS-422 data-communications interfaces. TheRS-485/RS-422 I/O pins are protected against ±15kVelectrostatic discharge (ESD) shocks, without latchup.Transceivers, optocouplers, and a transformer are allincluded in one low-cost, 28-pin PDIP package. A single+3.3V supply on the logic side powers both sidesof the interface.

The MAX3480EB features reduced-slew-rate driversthat minimize EMI and reduce reflections caused byimproperly terminated cables, allowing error-free datatransmission at data rates up to 160kbps. TheMAX3480EA's driver slew rate is not limited, allowingtransmission rates up to 2.5Mbps.

Drivers are short-circuit current limited and are protectedagainst excessive power dissipation by thermalshutdown circuitry that places the driver outputs into ahigh-impedance state. The receiver input has a fail-safefeature that guarantees a logic-high output if the inputis open circuit.

The MAX3480EA/MAX3480EB are guaranteed to withstand1260VRMS (1min) or 1520VRMS (1s). Their isolatedinputs and outputs meet RS-485/RS-422 specifications.

关键特性
  • 以下关键特性由Maxim美信半导体提供：
  • Isolated Data Interface Guaranteed to 1260VRMS(1min)
  • ±15kV ESD Protection for I/O Pins
  • Slew-Rate-Limited Data Transmission (160kbps forMAX3480EB)
  • High-Speed, Isolated, 2.5Mbps RS-485 Interface(MAX3480EA)
  • Single +3.3V Supply
  • Current Limiting and Thermal Shutdown forDriver Overload Protection
  • Standard 28-Pin PDIP Package
  • Allows Up to 128 Transceivers on the Bus
    • 热门应用
  • 自动测试设备(ATE)
  • HVAC/楼宇控制网络
  • 工业控制局域网
  • 隔离型RS-485/RS-422数据接口
  • 电信
  • 用于EMI敏感应用的收发器
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