WMSIC Electronic Components

GR LM358

ModelLM358
PackageSOP-8
BrandGR
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 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
GR LM358
Type
GR
Minimum package
2500 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
GR
Electronic Component
LM358
Electronic Component
1
Package
SOP-8
Electronic Component
Operational Amplifier
Electronic Component
0.08g
Electronic Component
1
Features
Built-in
Electronic Component
BM0264390957
Operating Temperature
0℃~+70℃
Amplifier
2
Output Current
24mA
Power Supply Voltage
3V~36V
Static Current(Iq)
500uA
Electronic Component
Electronic Component

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

LM358通用运算放大器产品概述

一、产品定位与核心价值

LM358是国睿(GR)推出的双路通用运算放大器,聚焦低成本、高适配性的信号处理需求,广泛覆盖工业控制、消费电子、汽车电子等领域的基础运算场景。其核心价值在于:兼顾性能与成本控制,单/双电源兼容简化电路设计,低功耗适配电池供电设备,是替代传统运放的高性价比选择。

二、关键电气参数解析

2.1 放大与驱动能力

  • 增益带宽积(GBP):1.2MHz,可满足中等频率信号(如音频信号、低速传感器信号)的放大需求,避免信号失真;
  • 输出电流:24mA(典型值),可直接驱动小型负载(如10mA以内的LED、小型继电器线圈、低阻抗耳机等),无需额外增加驱动级。

2.2 输入与干扰抑制

  • 输入特性:输入失调电压(Vos)5mV、输入偏置电流(Ib)50nA、失调电流(Ios)50nA,适合对输入精度要求不极端的场景(如传感器信号放大、电压比较);
  • 共模抑制比(CMRR):80dB,能有效抑制共模干扰(如电源纹波、电磁干扰),提升信号信噪比。

2.3 功耗与电源适配

  • 静态电流(Iq):仅500μA,低功耗设计可适配电池供电设备(如一节AA电池可连续供电约4000小时);
  • 电源范围:单电源3V~36V,双电源±18V(Vdd-Vss最大36V),兼容5V、12V、24V等常见系统电源,无需额外电源转换。

三、封装与应用灵活性

LM358采用SOP-8封装(小型表面贴装),体积紧凑(尺寸约5.2×6.0mm),适合PCB板高密度布局,可兼容自动化贴片生产;同时支持单电源工作(无需负电源),简化电路设计(如单电源5V供电时,可通过分压实现信号偏置),降低系统成本。

四、典型应用场景

4.1 工业控制领域

  • 传感器信号放大:温度、压力、流量传感器的mV级微弱信号放大至V级,便于ADC采集;
  • 阈值检测:作为电压比较器,检测液位、温度是否超过设定阈值(如水箱液位低于下限触发报警);
  • 滤波电路:配合电阻电容实现低通/高通滤波,去除信号中的高频噪声。

4.2 消费电子领域

  • 音频前置放大:小型音箱、蓝牙耳机的前置级放大,提升音频信号强度;
  • 电池电压监测:比较电池电压与设定阈值,判断是否低电量;
  • LED亮度调节:通过运放控制电流,实现LED亮度线性调节。

4.3 汽车电子领域(常温场景)

  • 车内传感器处理:车门状态检测、座椅位置传感器信号放大;
  • 简单控制电路:雨刮器速度调节、车灯亮度辅助控制。

五、可靠性与环境适应性

LM358的工作温度范围为0℃~+70℃,覆盖常温及一般工业环境温度,满足大多数民用、工业常规场景的使用需求;国睿(GR)对产品进行了高低温存储、电应力老化、焊接可靠性测试,参数一致性好,适合批量量产应用。

六、品牌与品质保障

国睿(GR)作为国内专业电子元器件厂商,在通用运放领域拥有成熟的生产工艺与测试体系,LM358符合RoHS环保标准,且参数稳定可靠,可替代市场主流LM358型号,是企业降低成本、提升产品竞争力的优选方案。

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