WMSIC Electronic Components

BLUE ROCKET LM358

ModelLM358
PackageSOP-8
BrandBLUE ROCKET
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 24+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
BLUE ROCKET LM358
Type
BLUE ROCKET
Minimum package
4000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
BLUE ROCKET
Electronic Component
LM358
Electronic Component
1
Package
SOP-8
Electronic Component
Operational Amplifier
Electronic Component
0.168g
Electronic Component
1
Features
Built-in
Electronic Component
BM0225825166
Operating Temperature
0℃~+70℃
Amplifier
2
Output Current
40mA
Power Supply Voltage
3V~36V
Static Current(Iq)
800uA
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 双路运算放大器(BLUE ROCKET,SOP-8)产品概述

一、主要参数

LM358(BLUE ROCKET 品牌,封装 SOP-8)是一款通用的双路运算放大器,适用于宽电源范围和低功耗应用。主要电气参数如下:

  • 共模抑制比(CMRR):75 dB
  • 最大电源宽度(Vdd‑Vss):36 V
  • 单电源工作范围:3 V ~ 36 V
  • 输入失调电压(Vos):3 mV
  • 输入偏置电流(Ib):45 nA
  • 输入失调电流(Ios):2 nA
  • 放大器数:双路(2 channel)
  • 静态电流(Iq):800 μA
  • 输出电流能力:40 mA(单通道)
  • 工作温度范围:0 ℃ ~ +70 ℃
  • 功率耗散(Pd):570 mW(SOP‑8,150 mil)
  • 典型描述:SOP8_150MIL,Vcc=±18 V,Vi=36 V

二、功能与优势

LM358 以其实用性和稳定性被广泛采用,具有以下优势:

  • 宽工作电源范围:支持 3 V 至 36 V 单电源(或 ±18 V 对称双电源),适配多种系统电源设计,减少外部电源转换需求。
  • 低功耗特性:每对放大器静态电流约 800 μA,有利于电池供电或低功耗系统的长期工作。
  • 双通道集成:两个独立放大器集成在单一 SOP‑8 封装中,可节省 PCB 面积并简化布线。
  • 合理的偏置与失调:输入失调电压约 3 mV、偏置电流和失调电流较小,满足多数通用信号调理与放大场合的精度要求。
  • 输出驱动能力:单通道最高可驱动约 40 mA,适合驱动小负载或后级缓冲。

三、典型应用

LM358 的通用性使其适用于多类模拟电路,包括但不限于:

  • 传感器信号调理(温度、压力、光电等)
  • 低频滤波器、积分/微分电路
  • 比较器替代与窗口比较(非严格高速比较场景)
  • 电压跟随器、增益放大与缓冲驱动小负载
  • 工业控制与便携式仪器的前端放大

四、电气与封装说明

本产品以 BLUE ROCKET 标识供应,常见封装为 SOP‑8(150 mil)。在实际工程设计中需关注以下要点:

  • 最大允许电源差为 36 V,超过该电压将可能损坏器件。
  • 功率耗散约 570 mW(在指定封装与基准条件下),高功率或高环境温度需评估热性能与降额。
  • 输出驱动能力限于约 40 mA,驱动较大电感性或电阻性负载时应考虑外部缓冲或保护。

五、使用建议与注意事项

为确保 LM358 在实际电路中稳定可靠,建议遵循下列实践:

  • 电源旁路:在每个放大器附近放置 0.1 μF 陶瓷旁路电容以抑制高频噪声,并建议加上 1 μF 以上的去耦电容用于低频稳定。
  • 输入保护:避免将输入电压超过电源轨范围,必要时加限流电阻或浪涌保护元件。
  • 热管理:在高温或高功率工作条件下评估封装功耗与 PCB 散热能力,必要时增加铜箔面积以带走热量。
  • 精度补偿:对于对偏置电流或失调电压敏感的测量电路,可采用偏置补偿、输入桥接或软件校准方法降低误差影响。
  • 布局注意:模拟地与电源地应合理分割并在单点回流,输入导线尽可能短以减少噪声耦合。

总结:BLUE ROCKET 的 LM358(SOP‑8)以其宽电源范围、双通道集成与适中的功耗与驱动能力,适合工业控制、传感器接口与通用模拟前端等多种应用。根据具体精度与功率需求,通过合理布局与去耦措施可获得稳定的长期性能。

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