WMSIC Electronic Components

ADI/LINEAR MAX3490ESA+T MAX3490ESA

ModelMAX3490ESA+T
PackageSOIC-8
BrandADI/LINEAR
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
ADI(Analog Devices) / LINEAR MAX3490ESA+T
Type
ADI/LINEAR
Minimum package
2500

Technical parameters

Electronic Component
ADI(Analog Devices) / LINEAR
Electronic Component
MAX3490ESA+T
Electronic Component
1
Package
SOIC-8
Type
Transceiver
Electronic Component
RS-485 / RS-422IC
Electronic Component
0.215g
Electronic Component
32
Electronic Component
1
Electronic Component
BM0258688053
Operating Temperature
40℃~+85℃
Operating Voltage
3V~3.6V
Receiver
1
Data
10Mbps
Communication
Electronic Component
Static Current
2.2mA

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

MAX3490ESA+T RS-422/RS-485收发器产品概述

MAX3490ESA+T是亚德诺半导体(ADI,原Linear Technology)推出的工业级3.3V供电RS-422/RS-485全双工收发器,专为噪声环境下的多节点通信设计,兼顾低功耗、抗干扰与EMI优化,广泛适配工业自动化、医疗设备等场景。

一、产品定位与核心身份

作为RS-422/RS-485接口的集成收发器,MAX3490ESA+T集成1个差分驱动器和1个差分接收器,支持全双工通信模式(无需额外收发切换逻辑),核心定位是低功耗、高可靠的工业通信接口解决方案,针对3.3V微控制器(MCU)系统优化,无需电平转换即可直接对接。

二、关键电气性能参数

该器件的性能围绕“稳定通信+低功耗”展开,核心参数如下:

  1. 供电与功耗:采用3V~3.6V单电源供电,覆盖常见MCU的3.3V工作电压范围;静态电流仅2.2mA,远低于部分同类器件的5mA+水平,适合电池供电的远程监测设备或长时间运行的工业系统。
  2. 通信能力:支持最高10Mbps数据速率,满足工业传感器、PLC(可编程逻辑控制器)的实时通信需求;总线负载能力可达32个节点,可搭建中小型工业网络(如传感器集群、设备总线)。
  3. 抗干扰与EMI优化:内置slew率限制电路,抑制信号过冲与振铃,减少电磁干扰(EMI),符合IEC电磁兼容标准;支持RS-422/RS-485差分传输,共模电压范围为-7V~+12V,有效抵御工业现场的共模噪声(如电机干扰、电源波动)。
  4. 可靠性保护:驱动器输出具备短路保护,接收器输入支持热插拔(无上电冲击),提升系统稳定性。

三、典型应用场景

MAX3490ESA+T的性能特点适配多类场景,核心应用包括:

  1. 工业自动化:PLC与远程I/O模块通信、传感器网络(温度/压力传感器集群)、机器视觉系统数据传输;
  2. 医疗设备:监护仪、输液泵等设备的总线通信(低EMI避免干扰医疗信号);
  3. 智能楼宇:楼宇自控系统(BAS)的传感器与控制器通信、门禁系统多节点连接;
  4. 电池供电系统:远程环境监测站(气象站、水质监测)、便携式工业测试设备;
  5. 工业级延伸场景:非车载工业车辆(叉车、AGV)的传感器网络通信。

四、封装与环境适应性

  1. 封装形式:采用SOIC-8(小外形集成电路)贴片封装,尺寸紧凑(约5.2mm×6.0mm),适合高密度PCB设计,降低系统体积;
  2. 温度范围:工作温度覆盖-40℃~+85℃,符合工业级温度标准,适应工厂车间(高温)、户外设备(低温)等 harsh环境;
  3. 生产兼容性:SOIC-8封装支持回流焊工艺,与标准贴片生产线兼容,降低生产难度。

五、核心技术优势

与同类器件相比,MAX3490ESA+T的核心优势体现在:

  • 低功耗高集成:单3.3V供电实现全双工通信,静态电流仅2.2mA,减少系统功耗预算;
  • EMI优化:slew率限制降低信号辐射,适合医疗、航空航天等EMI敏感场景;
  • 多节点可靠性:32节点负载能力+短路保护,提升总线稳定性,减少维护成本;
  • 宽环境适配:工业级温度范围+抗共模干扰,适配复杂工业现场。

该器件已通过RoHS认证,符合环保要求,是工业通信接口设计中“低功耗、高可靠”的优选方案之一。

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