WMSIC Electronic Components

ElecSuper LM358ADT(ES) LM358ADT

ModelLM358ADT(ES)
PackageSOP-8
BrandElec Super
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
Elec Super LM358ADT(ES)
Type
ELECSUPER
Minimum package
4000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
ELECSUPER
Electronic Component
LM358ADT(ES)
Electronic Component
1
Package
SOP-8
Electronic Component
Operational Amplifier
Electronic Component
0.152g
Electronic Component
1
Electronic Component
Output
Electronic Component
BM0258806411
Operating Temperature
40℃~+125℃
Amplifier
2
Output Current
45mA
(SR)
1V/us
Power Supply Voltage
3V~36V
Static Current(Iq)
117uA

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

LM358ADT(ES) — 双路轨到轨运算放大器产品概述

LM358ADT(ES) 是 ElecSuper(静芯微)推出的一款高可靠性、低功耗的双路运算放大器,适合在宽电源电压范围下工作的信号调理和传感器前端设计。本器件在保持低静态功耗的同时,提供良好的失调、噪声和共模抑制性能,适合电池供电、工业控制及便携式产品等多种场景。

一、主要特性

  • 双路放大器,封装:SOP-8,便于 PCB 布局与批量制造。
  • 电源电压范围(单电源):3 V ~ 36 V,最大电源宽度可达 36 V。
  • 轨到轨输入与轨到轨输出,便于在低电压单电源系统中实现最大动态范围。
  • 增益带宽积(GBP):1 MHz,适合低至中频放大应用。
  • 压摆率(SR):1 V/µs,能满足一般信号变换速率要求。
  • 低静态电流(Iq):117 µA,适合低功耗设计。
  • 工作温度范围:-40 ℃ ~ +125 ℃,适用于工业级应用。

二、关键性能参数解析

  • 输入失调电压(Vos):典型 3.5 mV;输入失调电压温漂(Vos TC)仅 3 µV/℃,有助于在温度变化环境下维持精确放大。
  • 输入偏置电流(Ib):30 pA,输入失调电流(Ios):2 pA,低偏置电流有利于高阻抗传感器接口(例如热敏电阻、电容式传感器等)。
  • 噪声密度(eN):35 nV/√Hz(@1 kHz),在音频及低频测量中噪声表现良好。
  • 共模抑制比(CMRR):95 dB,表明在共模干扰存在时仍能保持良好差分放大性能。

这些参数共同决定了 LM358ADT(ES) 在精度、稳定性与温漂控制方面的表现,使其在信号调理、滤波与缓冲等场合表现可靠。

三、典型应用场景

  • 传感器接口:压力、温度、光电或力传感器的前端放大与缓冲,尤其适合高阻抗传感器。
  • 数据采集系统:为 ADC 提供低失真、低噪声的输入缓冲与驱动。
  • 低速或中速的有源滤波器(低通、高通、带通)与积分/微分电路。
  • 电池供电与便携设备:宽电源范围与低静态电流使其成为电池系统的优选。
  • 工业控制与监测:宽温度范围与高可靠性满足工业环境要求。

四、设计与使用建议

  • 电源去耦:建议在靠近器件电源引脚处放置 0.1 µF 陶瓷去耦电容并并联 1 µF 至 10 µF 的钽电容,以抑制高频与低频电源噪声。
  • 输入保护:尽管具备轨到轨特性,但在输入可能超出电源轨的场合应加防护电路(限流/钳位)以避免损坏。
  • 布局注意:模拟信号线尽量短并远离高频数字线,接地采用单点或局部星形接地以降低干扰。
  • 带宽与稳定性:GBP 为 1 MHz,设计闭环增益与相应的反馈元件时应注意裕度,避免高增益下出现相位裕度不足导致振荡。
  • 负载能力:轨到轨输出在接近电源轨时可能受驱动电流和负载影响,实际输出摆幅与负载阻抗有关,验证时应在目标负载条件下评估。

五、封装与可靠性

LM358ADT(ES) 提供 SOP-8 封装,便于自动化贴装和散热管理。器件经过工业级温度测试,工作温度范围为 -40 ℃ 至 +125 ℃,满足多种恶劣环境下的可靠性需求。产品在批量采购前建议参考厂方器件电气特性图表与封装机械尺寸,以确认与系统的兼容性。

六、选型与采购注意

  • 在选型时注意确认器件的典型与最大/最小指标(如 Vos、SR、噪声、静态电流)是否满足系统要求,并考虑温度漂移对精度的影响。
  • 若系统对失调或噪声有更高要求,可考虑后级校准、电路补偿或选用更高性能的运放型号。
  • 采购时请留意 ElecSuper(静芯微)提供的器件批次、封装版本与相关质量保证文件,以确保长期供应与一致性。

LM358ADT(ES) 在低功耗、宽供电、电压摆幅以及稳定性之间取得了良好平衡,适合对成本、功耗与可靠性有综合要求的模拟前端设计。若需具体电气特性曲线、引脚图或参考电路,请参阅厂方完整数据手册并结合实际测试验证。

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