WMSIC Electronic Components

ADI/LINEAR MAX941ESA+T MAX941ESA

ModelMAX941ESA+T
PackageSO-8
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 24+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
ADI(Analog Devices) / LINEAR MAX941ESA+T
Type
ADI/LINEAR
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
ADI(Analog Devices) / LINEAR
Electronic Component
MAX941ESA+T
Electronic Component
1
Package
SO-8
Electronic Component
Comparator
Electronic Component
0.114g
Electronic Component
1
Electronic Component
Electronic Component
Electronic Component
BM0265132386
Operating Temperature
40℃~+85℃
Comparator
Electronic Component
Output
TTL;CMOS
Static Current(Iq)
350uA
(tpd)
80ns
Electronic Component
Electronic Component

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

MAX941ESA+T 产品概述

一、概述

MAX941ESA+T 是一款高性能、低功耗的单路模拟比较器,适用于3V / 5V 系统,具有轨到轨输入特性,能够在输入端接近电源轨时保持良好比较性能。器件静态电流低、响应速度适中,输出兼容TTL与CMOS逻辑电平,适合各种便携与工业控制场景。该型号来源于ADI(含原Maxim/Linear)器件家族,封装为SO-8,工作温度范围为-40℃至+85℃。

二、主要特点

  • 单路比较器(single)设计,方便点对点阈值检测。
  • 输入失调电压Vos典型值约1 mV,适用于需要较高精度的门限检测。
  • 输入偏置电流Ib约150 nA,可降低对高阻抗信号源的影响。
  • 传播延迟tpd≈80 ns,满足多数中高速比较应用需求。
  • 输出兼容TTL和CMOS逻辑,便于直接驱动下游数字电路。
  • 轨到轨输入(Rail-to-Rail),支持输入信号接近电源轨的检测。
  • 静态电流Iq约350 μA,适合需要低功耗但又有一定响应速度的系统。
  • 工业级温度范围:-40℃至+85℃。
  • 封装:SO-8,利于通用PCB布局与散热。

三、关键参数(摘要)

  • 供电:3V / 5V 兼容(请按器件数据手册确认具体允许的电源范围)。
  • 输入失调电压:1 mV(典型)
  • 输入偏置电流:150 nA(典型)
  • 传播延迟:80 ns(典型)
  • 静态电流:350 μA(quiescent)
  • 输出模式:TTL/CMOS 兼容
  • 输入结构:轨到轨输入
  • 工作温度:-40℃ ~ +85℃
  • 封装:SO-8

四、典型应用场景

  • 电池供电的便携设备电压监测与阈值检测。
  • 工业控制与开关量信号整形(限速器、过压/欠压检测)。
  • 低功耗采集前的窗口比较与故障检测。
  • ADC采样前的比较触发与快速门限判定。
  • 电源管理电路中的软启动、欠压复位检测等。

五、器件优势与设计要点

  • 低失调电压和低输入偏置电流提升了对微弱信号和高阻抗传感器的兼容性。
  • 轨到轨输入使得在低电压系统中也能检测接近地或电源端的信号,无需外部电平移位器。
  • 80 ns 的延迟在多数控制与测量场合提供足够的速度,同时静态电流仅350 μA,有利于延长电池寿命。
  • 输出兼容TTL/CMOS,减小接口设计复杂度;但在高负载或特殊电平需求时,请参考手册选择合适的上拉/下拉策略。

六、布局与使用建议

  • 电源去耦:在VCC引脚附近放置0.1 μF陶瓷电容并并联一个10 μF电解或钽电容,以抑制电源瞬变。
  • 输入防护:若输入可能接触高电压或反向电压,建议加限流电阻或二极管保护,防止超出轨到轨范围的瞬态。
  • 布线:将敏感输入与高速开关节点隔离,避免杂散电容与耦合干扰影响比较精度。
  • 温漂与校准:若系统对温度稳定性要求高,应参考器件温漂数据并在必要时采用软件校准或加温补措施。

七、结论

MAX941ESA+T 提供了低失调、低偏置、轨到轨输入与TTL/CMOS 兼容输出的平衡组合,适合需要中高速响应与低功耗的阈值检测场景。具体电气特性与极限参数请以厂家数据手册为准,在设计时结合去耦、输入保护与版图优化可以取得最佳系统表现。

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