MAX14776E

±65V Fault Protected 500Kbps/20Mbps Half-Duplex RS-485/RS-422 Transceivers

Robust RS-485 increases uptime


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说明

The MAX14775E/MAX14776E fault-protected RS-485/RS-422 transceivers feature ±65V protection for overvoltage signal faults on communication bus lines, ensuring communication in harsh industrial environments. Each device contains one driver and one receiver and operates over the 3V to 5.5V supply range. The MAX14775E is optimized for high-speed data rates up to 20Mbps. The MAX14776E features slew-rate limited outputs for data rates up to 500kbps.

These transceivers are optimized for robust communication in noisy environments. A large 200mV (typ) hysteresis on receiver inputs ensure for high noise rejection and a failsafe feature guarantees a logic-high on the receiver output when the inputs are open or shorted. Driver outputs are protected against short-circuit conditions.

The MAX14775E/MAX14776E receivers feature a 1/3-unit load input impedance, allowing up to 100 transceivers on a bus.

The MAX14775E/MAX14776E are available in 8-pin SOIC and 8-pin TDFN-EP packages and operate over the -40°C to +125°C temperature range.
MAX14775E, MAX14776E: Functional Diagram MAX14775E, MAX14776E: Functional Diagram 放大+

关键特性

  • Integrated Protection Ensures for Robust Communication
    • ±65V Fault Protection Range on Driver Outputs/Receiver Inputs
    • ±25V Common Mode Range on the Receiver Inputs
    • Large Receiver Hysteresis Increases Noise Tolerance
    • Hot-Swap Protection
    • Thermal Shutdown
  • High-Performance Transceiver Enables Flexible Designs
    • Compliant with RS-485 EIA/TIA-485 Standard
    • 20Mbps (MAX14775E)/500kbps (MAX14776E) Maximum Data Rate
    • 3V to 5.5V Supply Range
    • Up to 100 Devices on the Bus

应用

  • HVAC
  • null
  • 运动控制器

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


Part NumberTx/RxDuplexVSUPPLY
(V)
Fault Protect.
(±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)
MAX14775E 1Tx + 1RxHalf3.0 to 5.5653200008YesYes4100Open or ShortedNo-40 to +125
SOIC (N)/8
TDFN-CU/8
$3.16 @1k
MAX14776E 500Yes
SOIC (N)/8
TDFN-CU/8
$3.06 @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。

MAX14775EEVKIT: Evaluation Kit for the MAX14775E/MAX14776E

工具和模型

  • MAX14776E IBIS模型
  • 申请可靠性报告: MAX14776E 
    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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