WMSIC Electronic Components

COSINE COSINA138

ModelCOSINA138
PackageSOT-23-5
BrandCOSINE
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
COSINE COSINA138
Type
COSINE
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
COSINE
Electronic Component
COSINA138
Electronic Component
1
Package
SOT-23-5
Electronic Component
300kHz
Electronic Component
Current Sense Amplifier
Electronic Component
0.048g
Power Supply
3.5V~25V
Electronic Component
1
Common Mode Voltage
3.5V~40V
Electronic Component
BM0265013202
Operating Temperature
40℃~+125℃
Voltage
26V~+2V
Amplifier
Electronic Component
Static Current(Iq)
35uA

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

COSINA138 产品概述

一、概述

COSINA138 是科山芯创推出的一款单路低功耗精密运算放大器,适用于对偏置电流、失调与温漂有严格要求的便携与工业测量场景。器件设计注重低功耗与高精度的平衡,配合小型 SOT-23-5 封装,便于空间受限的系统集成。

二、主要特性

  • 单路放大器,品牌:COSINE(科山芯创)
  • 单电源工作电压:3.5 V ~ 25 V
  • 最大电源宽度 (VDD - VSS):26 V
  • 共模电压范围:3.5 V ~ 40 V(使用时请注意输入电压与电源电压、耐压限制)
  • 带宽:300 kHz
  • 输入偏置电流 (Ib):2 μA
  • 输入失调电压 (Vos):5 μV
  • 输入失调电压温漂 (Vos TC):0.5 μV/°C
  • 差分电压承受范围:-26 V ~ +2 V
  • 共模抑制比 (CMRR):100 dB
  • 静态电流 (Iq):35 μA
  • 工作温度范围:-40 ℃ ~ +125 ℃
  • 封装:SOT-23-5

三、性能亮点

  • 极低的输入失调电压(5 μV)及优异的温漂(0.5 μV/°C),使其在高精度直流测量和零点漂移敏感的传感器前端表现突出。
  • 低静态电流(35 μA)与宽工作电源范围,适合电池供电和长寿命便携设备。
  • 良好的共模抑制(100 dB)与差分电压抗扰能力,提升抗干扰与信号完整性。

四、典型应用

  • 精密传感器信号调理(电流/电压型传感器、桥式传感器)
  • 低功耗数据采集前端、滤波与放大
  • 便携式医疗检测设备
  • 工业控制与过程测量
  • 电池管理系统(BMS)与便携仪表

五、设计与使用建议

  • 为保证稳定性与抑制电源噪声,建议在器件电源端加 0.1 μF 高频去耦电容,近端布线。
  • 输入端避免超出差分电压与共模范围,若存在较大差分或反向电压,应在输入端加保护二极管或限流电路。
  • 在高精度应用中,给出合理的温度补偿与漂移校准方案,以发挥低 Vos TC 的优势。
  • SOT-23-5 小封装散热能力有限,长时间高功耗或高环境温度下应考虑热设计并保证工作温度在额定范围内。

六、封装与订购信息

  • 封装形式:SOT-23-5,便于表贴装配与自动化生产。
  • 工作温度:-40 ℃ ~ +125 ℃,满足工业级应用要求。
  • 采购咨询请联系科山芯创渠道或授权代理,提供样片与技术支持资料以便快速验证与评估。

COSINA138 以低失调、低漂移、低功耗和良好共模抑制为核心优势,适合对精度与能耗有双重约束的系统,为传感与测量类产品提供可靠的放大解决方案。

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