WMSIC Electronic Components

UMW LM124DR

ModelLM124DR
PackageSOP-14
BrandUMW
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 Electronic Component

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
UMW LM124DR
Type
UMW
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
UMW
Electronic Component
LM124DR
Electronic Component
1
Package
SOP-14
Electronic Component
Operational Amplifier
Electronic Component
0g
Power Supply
3V~32V
Electronic Component
1
Electronic Component
BM0266020197
Operating Temperature
55℃~+125℃
Amplifier
Electronic Component
Output Current
30mA
(SR)
500V/ms
(e N)
35nV/√Hz@1kHz
Static Current(Iq)
40mA

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

LM124DR 产品概述

UMW(友台半导体)LM124DR 是一款四路标准单端运算放大器,集成在 SOP-14 封装中,面向工业级和通用信号处理应用。器件支持宽电源电压范围、低偏置电流和较低噪声,适合缓冲、滤波、传感器接口及驱动中等负载的场合。器件工作温度覆盖 -55℃ 至 +125℃,满足严苛环境下的可靠性需求。

一、主要特性

  • 四路运算放大器,单端输入/输出结构
  • 最大电源宽度 (Vdd - Vss):32V;单电源工作 3V 至 32V
  • 双电源对称范围:±1.5V 至 ±16V(典型系统 ±15V 支持)
  • 增益带宽积 (GBP):1.2 MHz,适合低到中频放大应用
  • 输入失调电压 (Vos):典型 3 mV,便于直流精度要求不高的系统
  • 输入偏置电流 (Ib):20 nA;输入失调电流 (Ios):2 nA
  • 压摆率 (SR):500 V/ms(0.5 V/µs),能驱动中速变换信号
  • 噪声密度:35 nV/√Hz @1 kHz,良好信噪比表现
  • 共模抑制比 (CMRR):80 dB,差模抗干扰能力合理
  • 静态电流 (Iq):典型 40 mA(四路总和),需考虑散热与电源功耗
  • 输出电流能力:30 mA,能直接驱动小功率负载

二、典型性能参数(概览)

  • 带宽与增益:开环增益配合 1.2 MHz GBP 可实现几十至百倍增益下的稳定放大
  • 直流精度:Vos 与 Ib 在多数传感与滤波应用中可接受,必要时可采用外部偏置或电位器进行校准
  • 驱动能力:单通道可提供最高 30 mA 输出电流,适用于驱动低阻抗负载或作为后级缓冲器

三、典型应用场景

  • 传感器信号调理(温度、压力、流量等)
  • 主动滤波器、积分/微分电路、仪表放大器前端
  • 数据采集前置放大与缓冲
  • 工业控制与测试测量设备
  • 汽车电子与电源监测(在符合额定电压与温度范围内)

四、封装与型号

  • 封装:SOP-14(LM124DR)
  • 品牌/制造:UMW(友台半导体)
  • 型号建议:LM124DR(四通道标准单端放大器)

五、设计注意事项与布局建议

  • 电源去耦:在 VCC 与 VEE(或 VDD 与 VSS)近端并联 0.1µF 陶瓷与 10µF 低 ESR 电解电容,降低电源噪声与瞬态干扰
  • 热与功耗:四路静态电流约 40 mA,结合工作电压计算功耗,必要时留足散热面积和散热路径
  • 输入保护:尽量避免超过输入共模范围,加入限流电阻或二极管保护以防瞬态冲击
  • 布局:输入引线尽量短且远离高电流回路,模拟地单点接地以减少地环路噪声

六、典型电路建议

  • 单电源缓冲:用于 ADC 前端缓冲,配置为电压跟随器以提供低阻抗源
  • 有源低通/带通滤波:利用 1.2 MHz GBP,可实现其工作频段内的二阶或多阶滤波器
  • 差分放大与放大器级联:通过合理的偏置与反馈网络可实现中低频差分测量

总结:LM124DR 提供四路性价比较高的通用运放解决方案,兼顾宽电源范围与工业温度特性,适合多类中低频信号处理场景。在高精度或高频应用中,应评估其 GBP 与 Vos 等参数是否满足系统需求。

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