MAX1482

20µA、1/8单位负载、限摆率、RS-485收发器


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说明

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.
MAX1482、MAX1483:典型工作电路 MAX1482、MAX1483:典型工作电路 放大+

关键特性

  • 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

应用

  • 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

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)
Tx ENRx ENICC (Shutdn.)
(µA)
Rx/Tx on BusRx Failsafe w/ InputsSlew Rate LimitingOper. Temp.
(°C)
Package/PinsBudgetary
Price
typmintypSee Notes
MAX1482 1Tx + 1RxFull50.02250YesYes0.1256OpenNo
-40 to +85
0 to +70
DICE SALES/N
PDIP/14
SOIC (N)/14
$1.62 @1k
MAX1483 Half
DICE SALES
PDIP/8
SOIC (N)/8
UMAX/8
$1.57 @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。
产品可靠性报告: MAX1482.pdf 
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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