MAX3085

失效保护、高速(10Mbps)、限摆率、RS-485/RS-422收发器


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说明

The MAX3080-MAX3089 high-speed transceivers for RS-485/RS-422 communication 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 MAX3080/MAX3081/MAX3082 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 MAX3083/MAX3084/MAX3085 offer higher driver output slew-rate limits, allowing transmit speeds up to 500kbps. The MAX3086/MAX3087/MAX3088's driver slew rates are not limited, making transmit speeds up to 10Mbps possible. The MAX3089's slew rate is selectable between 115kbps, 500kbps, and 10Mbps by driving a selector pin with a single three-state driver.

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 MAX3082/MAX3085/MAX3088 are intended for halfduplex communications, while the MAX3080/MAX3081/ MAX3083/MAX3084/MAX3086/MAX3087 are intended for full-duplex communications. The MAX3089 is selectable between half-duplex and full-duplex operation. It also features independently programmable receiver and transmitter output phase via separate pins.
MAX3080、MAX3083、MAX3086:引脚配置 MAX3080、MAX3083、MAX3086:引脚配置 放大+

关键特性

  • For Fault-Tolerant Applications:
    MAX3430: ±80V Fault-Protected, Fail-Safe, 1/4- Unit Load, +3.3V RS-485 Transceiver
  • For Low-Voltage Applications:
    MAX3362: +3.3V, High-Speed, RS-485/RS-422 Transceiver in a SOT23 Package
  • For Multiple Transceiver Applications:
    MAX3030E-MAX3033E: ±15kV ESD-Protected, +3.3V, Quad, RS-422 Transmitters
    MAX3040-MAX3045: ±10kV ESD-Protected, Quad, +5V, RS-485/RS-422 Transmitters

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
Part NumberTx/RxDuplexVSUPPLY
(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
MAX3080 1Tx + 1RxFull50.375115YesYes0.001256Open or ShortedNo
-40 to +85
0 to +70
PDIP/14
SOIC (N)/14
$1.62 @1k
MAX3081 Full115NoNo-No
PDIP/8
SOIC (N)/8
$1.68 @1k
MAX3082 Half115YesYes0.001No
PDIP/8
SOIC (N)/8
$1.72 @1k
MAX3083 Full500YesYes0.001No
PDIP/14
SOIC (N)/14
$1.62 @1k
MAX3084 Full500NoNo-No
PDIP/8
SOIC (N)/8
$1.62 @1k
MAX3085 Half500YesYes0.001No
PDIP/8
SOIC (N)/8
$1.62 @1k
MAX3086 Full10000YesYes0.001No
PDIP/14
SOIC (N)/14
$1.62 @1k
MAX3087 Full10000NoNo-No
PDIP/8
SOIC (N)/8
$1.62 @1k
MAX3088 Half10000YesYes0.001No
PDIP/8
SOIC (N)/8
$1.62 @1k
MAX3089 Half/Full10000YesYes0.001-
PDIP/14
SOIC (N)/14
$1.62 @1k
查看所有RS-485/RS-422 Line Driver/Receivers (205)
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

产品可靠性报告: MAX3085.pdf 
无铅封装的锡(Sn)晶须报告

其它资源

RS-485资源

CAD Symbols and Footprints

  • MAX3085CPA+
  • MAX3085CSA+
  • MAX3085CSA+T
  • MAX3085EPA+
  • MAX3085ESA+
  • MAX3085ESA+T
  • 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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