WMSIC Electronic Components

HGSEMI LM741N

ModelLM741N
PackageDIP-8
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 24+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
HGSEMI LM741N
Type
HGSEMI
Minimum package
2000 盒

Technical parameters

Electronic Component
Electronic Component
Electronic Component
HGSEMI
Electronic Component
LM741N
Electronic Component
1
Package
DIP-8
Electronic Component
Operational Amplifier
Electronic Component
0.806g
Electronic Component
1
Electronic Component
BM0227687408
Operating Temperature
0℃~+70℃
Amplifier
1
Output Current
25mA
(SR)
500V/ms
Static Current(Iq)
1.7mA
Electronic Component
Electronic Component
Electronic Component
2000

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

LM741N 产品概述

一、产品简介

LM741N 是一款经典的通用单路运算放大器,华冠(HGSEMI)出品的 DIP-8 封装版本,针对中低速模拟信号放大与处理场景。器件采用内部补偿设计,稳定性好,便于在多种传统模拟电路中替代使用。推荐工作温度范围为 0℃~+70℃,适合商业级应用。

二、主要性能参数

  • 共模抑制比(CMRR):90 dB(典型),对共模干扰有较强抑制能力。
  • 最大电源电压(Vdd−Vss):36 V(绝对最大值),常用双电源 ±15 V。
  • 输入失调电压(Vos):5 mV(典型)。
  • 输入失调电压温漂(Vos TC):15 μV/℃(典型)。
  • 输入偏置电流(Ib):500 nA(典型);输入失调电流(Ios):200 nA(典型)。
  • 增益带宽积(GBP):1.5 MHz,适用于低至中频带宽放大需求。
  • 压摆率(SR):500 V/ms(相当于 0.5 V/μs),对快速边沿响应有限制。
  • 静态电流(Iq):1.7 mA(典型),器件功耗较低。
  • 输出电流:25 mA(峰值/短时),适合驱动小型负载。
  • 放大器数:单路(单通道运放)。
  • 封装:DIP-8(便于面包板实验与手工焊接)。

三、典型应用场景

  • 直流/低频放大器:仪表前端、传感器信号调理。
  • 负反馈放大电路:反相放大、同相放大、加法器、差分放大器。
  • 主动滤波器与积分/微分电路:需注意带宽与压摆率限制。
  • 教学与实验平台:由于封装与特性直观,常用于教学与原型验证。
    注意:不适合高精度、低噪声或高速(MHz 级以上带宽、高速采样)应用场合。

四、使用建议与注意事项

  • 电源与共模范围:LM741 不是轨到轨器件,输入共模电压范围不包含供电轨,建议使用对称双电源(±15 V)以获得最佳动态范围。
  • 旁路与去耦:在 V+、V− 电源引脚旁并联 0.1 μF 陶瓷与 10 μF 电解电容,靠近器件布置,可抑制电源瞬态。
  • 偏置与失调补偿:输入偏置电流与失调电压较大,重要精密应用建议并联偏置电阻或采用外部失调补偿电路(使用引脚 1、5 的偏置调节)。
  • 热与功耗:DIP-8 封装散热受限,连续大电流输出会导致结温升高,必要时采用降额设计或散热措施。
  • 保护与驱动能力:输出短路或重负载会触发限流,避免长期大电流输出;对于推挽驱动或驱动大电容性负载需加缓冲或串联阻抗。

五、封装与引脚(常见引脚功能)

  • 封装:DIP-8。便于插板与手工焊接。
  • 典型引脚(参考标准 LM741 引脚定义):
    1、Offset Null;2、Inverting Input;3、Non-inverting Input;4、V−(VEE);5、Offset Null;6、Output;7、V+(VCC);8、NC。
    使用时请参考华冠官方数据手册以确认引脚与极限参数。

六、总结

华冠 LM741N 是一款成熟可靠的通用运放,具有良好的共模抑制和稳定性,适用于教学、实验以及各类中低速模拟电路。其主要限制在于较低的增益带宽和压摆率、较大的输入偏置与失调,因而在高精度或高速场合需谨慎选型或使用更适合的现代轨到轨、高速运放。选型时建议参考完整数据手册,按实际温度、电源与负载条件进行电路验证。

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