WMSIC Electronic Components

WILLSEMI WS72042M-8/TR WS72042M

ModelWS72042M-8/TR
PackageMSOP-8
BrandWILLSEMI
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
WILLSEMI WS72042M-8 / TR
Type
WILLSEMI
Minimum package
4000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
WILLSEMI
Electronic Component
WS72042M-8/TR
Electronic Component
1
Package
MSOP-8
Electronic Component
Operational Amplifier
Electronic Component
0.082g
Electronic Component
1
Electronic Component
Output
Features
Built-in
Electronic Component
BM0266035456
Operating Temperature
40℃~+85℃
Amplifier
2
Output Current
20mA
(SR)
9V/ms
Power Supply Voltage
1.6V~5.5V

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

WS72042M-8/TR 双路轨到轨运算放大器产品概述

WS72042M-8/TR是韦尔半导体(WILLSEMI)推出的一款低功耗双路运算放大器,主打轨到轨输入输出、高精度与小体积特性,适配工业级温度范围,广泛应用于电池供电设备、精密传感器调理等场景。

一、核心定位与差异化优势

作为针对低功耗场景优化的运放,WS72042M-8/TR的核心优势体现在「低功耗+高精度+轨到轨动态范围」的均衡表现:

  • 静态电流仅610nA,比同级别多数产品低30%以上,适合长期依赖电池供电的设备;
  • 轨到轨输入输出设计,彻底解决单电源下信号动态范围受限问题;
  • 工业级宽温(-40℃~+85℃)与小封装(MSOP-8),兼顾可靠性与空间适应性。

二、关键性能参数深度解析

1. 轨到轨输入输出:充分释放电源动态范围

WS72042M-8/TR采用轨到轨输入+轨到轨输出设计:

  • 输入电压范围覆盖电源轨(Vss~Vdd),单电源1.6V供电时,输入信号可接近0V或1.6V;
  • 输出电压达电源轨95%以上(典型值),避免传统运放“输出饱和丢失信号”,动态范围比普通运放提升约30%。

2. 低功耗:适配电池供电设备核心需求

静态电流仅610nA,具体表现:

  • 单电源工作电压1.6V5.5V,兼容单节锂电池(3.7V)、纽扣电池(1.5V3V);
  • 双电源模式下,Vdd-Vss最大支持9V(如+4.5V/-4.5V);
  • 单节1000mAh锂电池供电,可连续工作超1600小时(理论值)。

3. 高精度与低噪声:满足精密信号调理

针对传感器、微弱电压等应用,具备:

  • 输入失调电压(Vos)100uV:比多数低功耗运放低50%,减少零位误差;
  • 温漂2.8uV/℃:温度变化时零位偏移小,宽温环境稳定;
  • 噪声密度125nV/√Hz@1kHz:适合音频前置放大、生物电信号检测;
  • 输入偏置电流10pA:适配高阻抗输入(电容式传感器、光电二极管),无需额外阻抗匹配。

4. 带宽与驱动能力:覆盖常规信号需求

  • 增益带宽积(GBP)29kHz:适合1kHz以内音频、传感器信号放大;
  • 压摆率(SR)9V/ms:响应快速,处理10kHz以内快速变化信号;
  • 输出电流20mA:驱动轻负载(LED、小型继电器),无需额外驱动电路。

5. 抗干扰与可靠性:工业级场景适配

  • 共模抑制比(CMRR)74dB:抑制电源噪声、电磁干扰,提升信号纯度;
  • 工作温度-40℃~+85℃:通过工业级测试,适配户外、车间恶劣环境;
  • MSOP-8封装:体积3mm×3mm,比DIP-8小70%,适合便携设备、小型模块。

三、典型应用场景

  1. 电池供电便携设备:智能手环(心率/血氧调理)、便携血糖仪、运动手表;
  2. 精密传感器调理:PT100温度传感器、应变片压力传感器、光电传感器信号放大;
  3. 工业控制监测:PLC模拟量输入模块、现场温湿度节点、BMS电压监测;
  4. 低功耗通信:无线传感器网络(WSN)节点、蓝牙低功耗(BLE)设备;
  5. 消费电子:音频前置放大(耳机/音箱)、智能门锁传感器处理。

四、总结

WS72042M-8/TR是一款均衡型低功耗双路运放,兼顾低功耗、高精度、轨到轨动态范围与工业级可靠性,小体积MSOP-8封装适配空间受限场景。无论是电池供电便携设备,还是工业精密测量,都能提供稳定可靠的信号放大解决方案,是韦尔半导体针对中低端精密模拟市场的高性价比产品。

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