MAX3084E

±15kV ESD保护、失效保护、高速(10Mbps)、限摆率RS-485/RS-422收发器


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说明

The MAX3080E–MAX3089E are ±15kV electrostatic discharge (ESD)-protected, high-speed transceivers for RS-485/RS-422 communication that contain one driver and one receiver. These devices feature fail-safe circuitry, which guarantees a logic-high receiver output when the receiver inputs are open or shorted. This means that the receiver output will be a logic high if all transmitters on a terminated bus are disabled (high impedance). The MAX3080E/MAX3081E/MAX3082E feature reduced slew-rate drivers that minimize EMI and reduce reflections caused by improperly terminated cables, allowing error-free data transmission up to 115kbps. The MAX3083E/MAX3084E/MAX3085E offer higher driver output slew-rate limits, allowing transmit speeds up to 500kbps. The MAX3086E/MAX3087E/MAX3088Es' driver slew rates are not limited, making transmit speeds up to 10Mbps possible. The MAX3089E's slew rate is selectable between 115kbps, 500kbps, and 10Mbps by driving a selector pin with a single three-state driver. All devices feature enhanced ESD protection. All transmitter outputs and receiver inputs are protected to ±15kV using the Human Body Model.

These transceivers typically draw 375µA of supply current when unloaded, or when fully loaded with the drivers disabled.

All devices have a 1/8-unit-load receiver input impedance that allows up to 256 transceivers on the bus. The MAX3082E/MAX3085E/MAX3088E are intended for halfduplex communications, while the MAX3080E/MAX3081E/MAX3083E/MAX3084E/MAX3086E/MAX3087E are intended for full-duplex communications. The MAX3089E is selectable between half-duplex and full-duplex operation. It also features independently programmable receiver and transmitter output phase via separate pins.
MAX3080E、MAX3083E、MAX3086E:引脚配置 MAX3080E、MAX3083E、MAX3086E:引脚配置 放大+

关键特性

  • ESD Protection for RS-485 I/O Pins
    ±15kV, Human Body Model
  • True Fail-Safe Receiver While Maintaining EIA/TIA-485 Compatibility
  • Enhanced Slew-Rate Limiting Facilitates Error-Free Data Transmission (MAX3080E–MAX3085E/MAX3089E)
  • 1nA Low-Current Shutdown Mode (Except MAX3081E/MAX3084E/MAX3087E)
  • Pin-Selectable Full/Half-Duplex Operation (MAX3089E)
  • Phase Controls to Correct for Twisted-Pair Reversal (MAX3089E)
  • Allow Up to 256 Transceivers on the Bus

应用

  • 工业控制局域网
  • 电平转换器
  • RS-422/RS-485通信
  • 用于EMI敏感应用的收发器

请查看具体的参数规格 RS-485/RS-422 Line Driver/Receivers (208)


Part NumberTx/RxDuplexVSUPPLY
(V)
ICC
(mA)
Data Rate
(kbps)
ESD Protect.
(±kV)
Tx ENRx ENICC (Shutdn.)
(µA)
Rx/Tx on BusRx Failsafe w/ InputsSlew Rate LimitingOper. Temp.
(°C)
Package/PinsBudgetary
Price
(typ)(min)(typ)(See Notes)
MAX3080E 1Tx + 1RxFull50.375115-YesYes0.001256Open or ShortedNo
-40 to +85
0 to +70
PDIP/14
SOIC (N)/14
$1.84 @1k
MAX3081E Full11515NoNo-
PDIP/8
SOIC (N)/8
$1.84 @1k
MAX3082E Half11515YesYes0.001
PDIP/8
SOIC (N)/8
$1.84 @1k
MAX3083E Full50015YesYes0.001
PDIP/14
SOIC (N)/14
$1.92 @1k
MAX3084E Full50015NoNo-
PDIP/8
SOIC (N)/8
$1.84 @1k
MAX3085E Half50015YesYes0.001
PDIP/8
SOIC (N)/8
$1.84 @1k
MAX3086E Full1000015YesYes0.001
PDIP/14
SOIC (N)/14
$1.84 @1k
MAX3087E Full1000015NoNo-
PDIP/8
SOIC (N)/8
$1.84 @1k
MAX3088E Half1000015YesYes0.001
PDIP/8
SOIC (N)/8
$1.84 @1k
MAX3089E Half/Full1000015YesYes0.001
PDIP/14
SOIC (N)/14
$1.89 @1k

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。

其它资源

RS-485资源
申请可靠性报告: MAX3084E 
型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C   Material Composition  

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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