WMSIC Electronic Components

MSKSEMI OPA333AIDBVR-MS OPA333AIDBVR

ModelOPA333AIDBVR-MS
PackageSOT-23-5
BrandMSKSEMI
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
MSKSEMI OPA333AIDBVR-MS
Type
MSKSEMI
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
MSKSEMI
Electronic Component
OPA333AIDBVR-MS
Electronic Component
1
Package
SOT-23-5
Electronic Component
Precision Op Amp
Electronic Component
0.041g
Electronic Component
1
Electronic Component
Output
Features
positions
Electronic Component
BM0264464017
Operating Temperature
25℃~+125℃
Amplifier
Electronic Component
Output Current
21mA
(SR)
0.1V/us
Power Supply Voltage
1.8V~5.5V

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

OPA333AIDBVR-MS 精密运算放大器产品概述

一、产品定位与核心方向

OPA333AIDBVR-MS是美森科(MSKSEMI)推出的单路精密轨到轨运算放大器,聚焦「低功耗、高精度、宽温稳定」三大核心需求,针对工业传感器调理、电池供电设备、极端环境信号处理等场景优化。兼具超小型封装与高可靠性,是紧凑系统中替代传统精密运放的理想选择。

二、关键性能参数深度解析

1. 高精度核心指标

该运放的输入失调电压(Vos)仅1uV,失调电压温漂(Vos TC)低至10nV/℃,结合输入偏置电流(Ib)与输入失调电流(Ios)均为1pA,可精准放大微伏级微弱信号(如传感器输出),且宽温范围内漂移极小——即使环境温度变化30℃,失调电压变化仅0.3uV,避免温度对精度的干扰。同时,共模抑制比(CMRR)达135dB,能有效抑制共模噪声,提升差分信号的信噪比。

2. 低功耗设计优势

静态电流(Iq)仅13.5uA,单电源工作范围为1.8V5.5V,双电源支持±0.9V±2.75V,最大电源电压差达5.5V,适配纽扣电池、锂电池等多种供电场景,可将便携式设备续航延长30%以上(对比同类高功耗运放)。低功耗特性也使其适合长期运行的工业数据采集系统,降低整体能耗。

3. 轨到轨输入输出特性

支持轨到轨输入与轨到轨输出:输入信号可接近电源轨(如单电源5V时,输入可至0V±10mV、5V±10mV),输出也能驱动至电源轨附近(输出摆幅达电源电压的99%以上),最大化信号动态范围,无需额外电平转换电路,简化系统设计并提升小信号放大效率。

4. 带宽与噪声表现

增益带宽积(GBP)为550kHz,压摆率(SR)0.1V/μs,可满足1kHz以下中等带宽的信号处理需求(如传感器动态信号);噪声密度仅79.4nV/√Hz@1kHz,低噪声特性使其适合医疗监测仪的微弱生物电信号、精密仪器的微电压测量等对噪声敏感的应用。此外,输出电流达21mA,可驱动小型显示模块、继电器线圈等中等负载。

5. 宽温工作适应性

工作温度范围覆盖**-25℃~+125℃**,符合工业级温度标准,可稳定工作于汽车发动机舱、户外工业传感器节点等极端环境,无需额外温度补偿电路,提升系统可靠性。

三、封装与系统集成特性

采用SOT-23-5超小型封装,尺寸仅2.9mm×1.6mm,适合空间受限的应用(如手持仪表、贴片式传感器模块)。引脚定义清晰(Vcc、Vin+、Vin-、Vout、Vss),易于PCB布局,可与基准源、ADC等元件直接集成,简化系统级设计。

四、典型应用场景

  1. 工业传感器调理:压力、温度、流量传感器的微弱信号放大(1pA偏置电流适配高阻抗传感器,10nV/℃温漂保证宽温精度);
  2. 电池供电便携式设备:血氧仪、心电图仪、手持万用表(低功耗延长续航);
  3. 宽温环境信号处理:汽车胎压监测、发动机传感器(-25℃~+125℃稳定工作);
  4. 精密数据采集:高精度ADC前端放大(低噪声+轨到轨输出匹配ADC输入范围);
  5. 基准缓冲器:作为精密基准电压的缓冲,低漂移特性保证输出稳定。

五、核心竞争优势总结

相比同类单路精密运放,OPA333AIDBVR-MS的突出优势在于:

  • 超小偏置电流:1pA输入偏置电流,直接驱动高阻抗信号源,无需缓冲电路;
  • 极低温漂:10nV/℃失调温漂,宽温下精度保持能力领先;
  • 低功耗宽电源:13.5uA静态电流+1.8V~5.5V单电源,适配电池与工业电源;
  • 轨到轨全范围:输入输出均轨到轨,最大化动态范围,简化系统设计;
  • 工业级宽温:-25℃~+125℃工作温度,满足极端环境需求。

该产品凭借上述特性,可广泛应用于工业控制、医疗电子、汽车电子等领域,为紧凑系统提供高性价比的精密放大方案。

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