WMSIC Electronic Components

ADI/LINEAR MAX4238AUT+T MAX4238AUT

ModelMAX4238AUT+T
PackageSOT-23-6
BrandADI/LINEAR
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
ADI(Analog Devices) / LINEAR MAX4238AUT+T
Type
ADI/LINEAR
Minimum package
2500 未知

Technical parameters

Electronic Component
Electronic Component
Electronic Component
ADI(Analog Devices) / LINEAR
Electronic Component
MAX4238AUT+T
Electronic Component
1
Package
SOT-23-6
Electronic Component
Precision Op Amp
Electronic Component
0.1g
Electronic Component
1
Electronic Component
Output
Features
Built-in
Electronic Component
BM0258873069
Operating Temperature
40℃~+125℃
Amplifier
Electronic Component
Output Current
40mA
(SR)
0.35V/us
Power Supply Voltage
2.7V~5.5V

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

MAX4238AUT+T 精准运算放大器产品概述

一、产品定位与品牌依托

MAX4238AUT+T是亚德诺半导体(ADI)旗下LINEAR系列的单路精准运算放大器,核心定位为中小信号放大、低功耗便携场景,兼顾精度、带宽与电源适应性,适用于工业、医疗、消费电子等多领域。ADI作为模拟电路领域的领先厂商,其LINEAR系列传承了高可靠性、精准度的设计基因,该产品针对“微弱信号+电池供电+宽温环境”需求优化,是经典的通用型精准运放型号。

二、核心性能参数详解

该产品的性能参数围绕“精准、低耗、宽适应”三大核心设计,关键指标的实际意义如下:

(1)精准度指标:适配微弱信号放大

  • 输入失调电压(Vos):100nV(典型值)—— 极低的固有失调可减少信号放大中的基线误差,尤其适合μV级微弱信号(如压力传感器输出)。
  • 失调电压温漂(Vos TC):10nV/℃—— 宽温范围内(-40℃~+125℃)的温漂极小,避免温度变化导致的信号失真,适配工业/汽车级环境。
  • 共模抑制比(CMRR):140dB—— 对电源噪声、电磁干扰等共模信号的抑制能力极强,提升输出信号纯度。
  • 输入偏置电流(Ib):1pA(典型值)—— 超小偏置电流适合高阻抗输入(如压电传感器、光电二极管),避免负载效应导致的信号衰减。

(2)带宽与动态性能

  • 增益带宽积(GBP):1MHz—— 覆盖中等频率信号(如音频、10kHz以下传感器信号),满足大多数通用放大需求,无需额外高频器件。
  • 压摆率(SR):0.35V/μs—— 支持小信号快速变化(如瞬态温度/压力信号),避免大信号失真。

(3)电源与功耗特性

  • 单电源供电:2.7V~5.5V—— 兼容常见电池电压(3.7V锂电池、5V系统),无需双电源即可工作,简化电路设计。
  • 静态电流(Iq):600μA—— 低功耗设计适合电池供电设备(如便携式医疗仪器),延长续航时间。
  • 最大电源差:5.5V—— 电源电压波动下仍能稳定工作,抗电源噪声能力强。

(4)输出与噪声性能

  • 轨到轨输出:输出摆幅接近电源轨(Vss~Vdd),最大化动态范围,适配低电源电压场景(如2.7V电池)。
  • 输出电流:40mA—— 可驱动中等负载(如小型扬声器、LED驱动、短距离传输线)。
  • 噪声密度:30nV/√Hz@1kHz—— 低噪声特性适合放大微弱信号(如生物电信号、环境传感器信号)。

三、封装与引脚配置

该产品采用SOT-23-6封装(6引脚小型表面贴装),尺寸紧凑(约2.9mm×1.6mm),适合便携式设备、高密度PCB布局,有效节省空间。引脚功能遵循通用运放设计(通常包含:电源正(VDD)、电源负(VSS)、同相输入(IN+)、反相输入(IN-)、输出(OUT)、补偿端(COMP)),便于快速集成到现有电路。

四、典型应用场景

结合性能参数,MAX4238AUT+T的典型应用包括:

  1. 传感器信号调理:压力传感器、温度传感器、光电传感器的微弱信号放大,利用低噪声、低失调特性提升检测精度;
  2. 便携式医疗设备:血糖监测仪、血氧仪等电池供电设备,依赖低功耗、小型封装实现便携性;
  3. 工业控制模块:PLC模拟量输入、电机控制反馈电路,适配-40℃~+125℃宽温与高CMRR抗干扰;
  4. 音频前置放大:耳机放大器、麦克风前置级,1MHz带宽满足音频信号需求,轨到轨输出提升动态范围;
  5. 电池供电消费电子:智能手环、智能家居传感器节点,低静态电流延长电池寿命。

五、产品优势总结

MAX4238AUT+T的核心优势可概括为:

  • 精准可靠:低失调、低温漂、高CMRR,解决微弱信号放大的误差问题;
  • 低耗便携:600μA静态电流+SOT-23-6封装,适配电池供电与小型设备;
  • 宽温适配:-40℃~+125℃工作温度,覆盖工业/汽车级场景;
  • 电源灵活:单电源2.7V~5.5V,无需双电源简化设计。

该产品是中小信号放大场景中“精度、功耗、尺寸”平衡的优选型号,适合对成本敏感且需高性能的应用。

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