MAX3480EA

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


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说明

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

The MAX3480EB features reduced-slew-rate drivers that minimize EMI and reduce reflections caused by improperly terminated cables, allowing error-free data transmission at data rates up to 160kbps. The MAX3480EA's driver slew rate is not limited, allowing transmission rates up to 2.5Mbps.

Drivers are short-circuit current limited and are protected against excessive power dissipation by thermal shutdown circuitry that places the driver outputs into a high-impedance state. The receiver input has a fail-safe feature that guarantees a logic-high output if the input is open circuit.

The MAX3480EA/MAX3480EB are guaranteed to withstand 1260VRMS (1min) or 1520VRMS (1s). Their isolated inputs and outputs meet RS-485/RS-422 specifications.
MAX3480EA、MAX3480EB:典型应用电路 MAX3480EA、MAX3480EB:典型应用电路 放大+

关键特性

  • Isolated Data Interface Guaranteed to 1260VRMS (1min)
  • ±15kV ESD Protection for I/O Pins
  • Slew-Rate-Limited Data Transmission (160kbps for MAX3480EB)
  • High-Speed, Isolated, 2.5Mbps RS-485 Interface (MAX3480EA)
  • Single +3.3V Supply
  • Current Limiting and Thermal Shutdown for Driver Overload Protection
  • Standard 28-Pin PDIP Package
  • Allows Up to 128 Transceivers on the Bus

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
Part NumberTx/RxDuplexVSUPPLY
(V)
Galvanic Isolation
(±V)
ICC
(mA)
Data Rate
(kbps)
Tx ENRx ENICC (Shutdn.)
(µA)
Rx/Tx on BusRx Failsafe w/ InputsSlew Rate LimitingOper. Temp.
(°C)
Package/PinsBudgetary
Price
typmintypSee Notes
MAX3480EA 1Tx + 1RxHalf3.310001302500YesNo0.2128OpenNo
-40 to +85
0 to +70
PDIP HYBRID/28
$20.71 @1k
MAX3480EB 80160
PDIP HYBRID/28
查看所有RS-485/RS-422 Line Driver/Receivers (204)
Pricing Notes:
价格仅供参考,用于同类产品的比较。所提供报价为美元,需要依汇率折合成人民币。该价格将因当地关税、税率和汇率而异。有关特定订购量和指定版本的报价和供货问题,请参考:价格与供货网站或与指定代理商联系。

质量和环境数据

申请可靠性报告: MAX3480EA 
无铅封装的锡(Sn)晶须报告

CAD Symbols and Footprints

  • MAX3480EACPI
  • MAX3480EACPI+
  • MAX3480EAEPI
  • MAX3480EAEPI+
  • 型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C  

    备注: 通过技术手段对故障率进行汇总,并映射到相关的材料部件号。 故障率与被测件的数量密切相关。

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