WMSIC Electronic Components

HGSEMI LM358DQ/TR LM358DQ

ModelLM358DQ/TR
PackageDFN-8(2x2)
BrandHGSEMI
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
HGSEMI LM358DQ / TR
Type
DFN-8(2X2)
Minimum package
4000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
HGSEMI
Electronic Component
LM358DQ/TR
Electronic Component
1
Package
DFN-8(2x2)
Electronic Component
Operational Amplifier
Electronic Component
0.038g
Electronic Component
1
Electronic Component
BM0264801289
Operating Temperature
0℃~+70℃
Amplifier
2
Output Current
24mA
Power Supply Voltage
3V~36V
Static Current(Iq)
500uA
Electronic Component
Electronic Component
Electronic Component
4000

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

LM358DQ/TR 产品概述

一、概述

LM358DQ/TR 是华冠(HGSEMI)推出的双路低功耗差分式运算放大器,采用紧凑的 DFN-8 (2×2 mm) 封装。器件在较宽的电源范围内工作,适合电池供电与工业供电两类系统,提供稳定的直流性能与中等带宽,适用于信号调理与通用放大场合。

二、主要特点

  • 双路放大器,差分输入结构,适合处理小信号差分或单端输入。
  • 工作电源范围宽:单电源 3 V ~ 36 V,双电源 ±18 V(Vee ~ Vcc)。
  • 低功耗:静态电流约 500 µA,有利于电池供电应用。
  • 输出驱动能力:最大输出电流 24 mA,能驱动一般负载。
  • 增益带宽积(GBW)约 1.2 MHz,适合中低频放大与滤波。
  • 输入性能:失调电压约 7 mV,输入偏置电流约 50 nA,失调电流约 10 nA。
  • 共模抑制比(CMRR)约 80 dB;工作温度范围 0 ℃ ~ +70 ℃。

三、封装与型号说明

  • 封装:DFN-8 (2×2 mm),小尺寸、适合高密度 PCB 布局。
  • 型号后缀说明:DQ 表示 DFN 封装,TR 表示卷带(Tape & Reel)包装,便于自动贴片生产。

四、典型应用

  • 传感器前端放大(温度、压力、光电等传感器信号调理)。
  • 低功耗便携式仪器与数据采集系统。
  • 主动滤波器、积分器与缓冲放大器。
  • 电平移位与放大电路、模拟开关驱动的前置放大。
  • 工业控制与测量仪器中对直流或低频信号的放大。

五、设计与使用建议

  • 建议在电源引脚附近放置 0.1 µF 陶瓷旁路电容以抑制高频噪声;在有较大电源干扰时增加一个 1 µF~10 µF 的电解/陶瓷混合旁路。
  • 注意 PCB 布局中放大器输入的走线长度与耦合,尽量减少输入侧噪声拾取与寄生电容。
  • 虽能在较宽电源电压下工作,但在极端工作点请验证输入/输出摆幅是否满足系统需求;若需要轨到轨性能,请在应用评估中确认。
  • 输出短路或靠近最大输出电流工作时需注意功耗与热设计,DFN 封装对 PCB 散热依赖较大,建议在焊盘下方设计热沉过孔或较大铜箔区域。

六、结论

LM358DQ/TR 以其宽电源范围、低静态电流和紧凑 DFN 封装,适合对尺寸与功耗有要求的通用模拟放大场合。结合良好的直流性能(低失调、低偏置电流)和适中的带宽,适配多种传感与信号调理应用。购买与批量装配可优选带 TR 后缀的卷带包装版本。

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