MAX3291 - RS-485/RS-422收发器，带有预加重，用于高速、远距离通信

MAX3291是Maxim美信半导体公司的一款传感器与传感器接口产品，MAX3291是RS-485/RS-422收发器，带有预加重，用于高速、远距离通信，本站介绍了MAX3291的封装应用图解、特点和优点、功能等，并给出了与MAX3291相关的Maxim元器件型号供参考。

MAX3291 - RS-485/RS-422收发器，带有预加重，用于高速、远距离通信 - 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 MAX3291/MAX3292 high-speed RS-485/RS-422 transceivers feature driver preemphasis circuitry, which extends the distance and increases the data rate of reliable communication by reducing intersymbol interference (ISI) caused by long cables. The MAX3291 is programmable for data rates of 5Mbps to 10Mbps, while the MAX3292 is programmable for data rates up to 10Mbps by using a single external resistor.

The MAX3291/MAX3292 are full-duplex devices that operate from a single +5V supply and offer a low-current shutdown mode that reduces supply current to 100nA. They feature driver output short-circuit current limiting and a fail-safe receiver input that guarantees a logic-high output if the input is open circuit. A 1/4-unit-load receiver input impedance allows up to 128 transceivers on the bus.

关键特性

以下关键特性由Maxim美信半导体提供：

Preemphasis Increases the Distance and Data Rate of Reliable RS-485/RS-422 Communication

Data Rate

Optimized for 5Mbps to 10Mbps (MAX3291)

Programmable up to 10Mbps (MAX3292)

100nA Low-Current Shutdown Mode

Allow Up to 128 Transceivers on the Bus

-7V to +12V Common-Mode Input Voltage Range

Pin-Compatible with '75180, MAX489, MAX491MAX3080, MAX3083, MAX3086, MAX1482

热门应用

工业控制局域网

远距离、高速RS-485/RS-422通信

电信

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