MAX1482, MAX1483 20µA、1/8单位负载、限摆率、RS-485收发器

 
数据资料
完整的数据资料 (PDF, 604kB)
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概述
The MAX1482 and MAX1483 are low-power transceivers for RS-485 and RS-422 communication. Both feature slew-rate-limited drivers that minimize EMI and reduce reflections caused by improperly terminated cables. Data rates are guaranteed up to 250kbps.

The MAX1482/MAX1483 draw only 20µA of supply current. Additionally, they have a low-current shutdown mode that consumes only 0.1µA. Both parts operate from a single +5V supply.

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 MAX1482 is full duplex and the MAX1483 is half duplex. Both parts have a 1/8-unit-load input impedance that guarantees up to 256 transceivers on the bus.

关键特性   应用/使用
  • Low 20µA Operating Current
  • Slew-Rate Limited for Reduced EMI and Reduced Reflections
  • 0.1µA Low-Current Shutdown Mode
  • Designed for RS-485 and RS-422 Applications
  • Operate from a Single +5V Supply
  • -7V to +12V Common-Mode Input Voltage Range
  • Allows up to 256 Transceivers on the Bus—Guaranteed (1/8-unit load)
  • Current Limiting and Thermal Shutdown for Driver Overload Protection

 
  • 工业控制局域网
  • 大规模256节点LAN
  • 低功耗RS-485/RS-422网络
  • 用于EMI敏感应用的收发器

    Key Specifications:   RS-422/485 Line Driver/Receivers
    Part Number Number of Tx/Rx Duplex Supply Voltage (V) Typ. ICC (mA) Data Rate (kbps) Tx EN Rx EN Typ. Shutdown ICC (µA) Number of Rx/Tx on Bus Rx Failsafe with Inputs: Features Slew Rate Limited Min. Foot-
    print (mm2)
    RoHS Available Operating Temp. Range (°C) Price*
    MAX1482  1Tx + 1Rx Full 5 0.02 250 Yes Yes 0.1 256 Open
    Low Power Shutdown
    No 54 Yes -40 to +85 0 to +70 $1.25 @ 1k
    MAX1483  Half 16 $1.25 @ 1k
    See All RS-422/485 Line Driver/Receivers (145)
    Notes:
    *This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.

    图表
    MAX1482,MAX1483:Typical Operating Circuit
    典型工作电路

    应用笔记
  • App Note 1090: Methods for Trimming the Power Required in RS-485 Systems - MAX1483 (English only)

    评估板

    设计指南
  • 电源 (PDF)
  • 用于笔记本电脑的低功耗IC (PDF)

    可靠性报告
  • 查询FIT数据:
  • 申请可靠性报告: (English only)

    软件/模型
  • MAX1482 IBIS模型
  • MAX1483 IBIS模型

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