MAX3485

3.3V供电、10Mbps、限摆率、真RS-485/RS-422收发器


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说明

The MAX3483, MAX3485, MAX3486, MAX3488, MAX3490, and MAX3491 are 3.3V, low-power transceivers for RS-485 and RS-422 communication. Each part contains one driver and one receiver. The MAX3483 and MAX3488 feature slew-rate-limited drivers that minimize EMI and reduce reflections caused by improperly terminated cables, allowing error-free data transmission at data rates up to 250kbps. The partially slew-rate-limited MAX3486 transmits up to 2.5Mbps. The MAX3485, MAX3490, and MAX3491 transmit at up to 10Mbps.

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 both inputs are open circuit.

The MAX3488, MAX3490, and MAX3491 feature full-duplex communication, while the MAX3483, MAX3485, and MAX3486 are designed for half-duplex communication.
MAX3483、MAX3485、MAX3486:典型应用电路 MAX3483、MAX3485、MAX3486:典型应用电路 放大+

关键特性

  • Operate from a Single 3.3V Supply-No Charge Pump!
  • Interoperable with +5V Logic
  • 8ns Max Skew (MAX3485/MAX3490/MAX3491)
  • Slew-Rate Limited for Errorless Data Transmission (MAX3483/MAX3488)
  • 2nA Low-Current Shutdown Mode (MAX3483/MAX3485/MAX3486/MAX3491)
  • -7V to +12V Common-Mode Input Voltage Range
  • Allows up to 32 Transceivers on the Bus
  • Full-Duplex and Half-Duplex Versions Available
  • Industry Standard 75176 Pinout (MAX3483/MAX3485/MAX3486)
  • Current-Limiting and Thermal Shutdown for Driver Overload Protection

应用

  • 工业控制局域网
  • 集成服务数字网络
  • 低功耗RS-485/RS-422收发器
  • 分组交换技术
  • 电信
  • 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
MAX3483 1Tx + 1RxHalf3.31250YesYes0.00232OpenNo
-40 to +85
0 to +70
PDIP/8
SOIC (N)/8
$2.07 @1k
MAX3485 Half10000YesYes0.002
PDIP/8
SOIC (N)/8
$2.07 @1k
MAX3486 Half2500YesYes0.002
PDIP/8
SOIC (N)/8
$1.97 @1k
MAX3488 Full250NoNo-
PDIP/8
SOIC (N)/8
$2.07 @1k
MAX3490 Full10000NoNo-
PDIP/8
SOIC (N)/8
$2.07 @1k
MAX3491 Full10000YesYes0.002
PDIP/14
SOIC (N)/14
$2.07 @1k
查看所有RS-485/RS-422 Line Driver/Receivers (206)
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。

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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