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Maxim产品 - MAX3491介绍

MAX3491 - 3.3V供电、10Mbps、限摆率、真RS-485/RS-422收发器

MAX3491是Maxim美信半导体公司的一款传感器与传感器接口产品，MAX3491是3.3V供电、10Mbps、限摆率、真RS-485/RS-422收发器，本站介绍了MAX3491的封装应用图解、特点和优点、功能等，并给出了与MAX3491相关的Maxim元器件型号供参考。

MAX3491 - 3.3V供电、10Mbps、限摆率、真RS-485/RS-422收发器 - 传感器与传感器接口 - Maxim美信半导体高性能芯片品质 - 美信半导体

产品概述

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.

关键特性
  • 以下关键特性由Maxim美信半导体提供：
  • 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
    • 热门应用
  • 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
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