WMSIC Electronic Components

COSINE COS2182U

ModelCOS2182U
PackageSOP-8
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 COS2182U
Type
COSINE
Minimum package
4000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
COSINE
Electronic Component
COS2182U
Electronic Component
1
Package
SOP-8
Electronic Component
Precision Op Amp
Electronic Component
0.112g
Electronic Component
1
Electronic Component
Output
Features
Built-in; /; positions
Electronic Component
BM0265013201
Operating Temperature
40℃~+85℃
Amplifier
Electronic Component
Output Current
18mA
(SR)
10V/us
Power Supply Voltage
4.5V~36V

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

COS2182U — 36V 高精度零漂移双路运放概述

一、产品简介

COS2182U 是 COSINE(科山芯创)面向高精度信号处理推出的双路零漂移运算放大器。器件支持单电源 4.5V36V 或双电源 ±2.25V±18V 工作,轨到轨输入与输出(RRIO),内置零漂移自动稳零与补偿电路,兼顾超低失调、低噪声与宽电压范围,适合精密传感、数据采集及工业控制等应用场景。

二、主要性能指标

  • 放大器通道数:双路(2CH)
  • 供电范围:单电源 4.5V36V;双电源 ±2.25V±18V
  • 输入失调电压(Vos):典型 10 μV
  • 失调温漂(Vos TC):5 nV/℃
  • 增益带宽积(GBW):5 MHz
  • 压摆率(SR):10 V/μs
  • 共模抑制比(CMRR):140 dB
  • 输入电压噪声密度(en):10 nV/√Hz @1 kHz
  • 输入偏置电流(Ib):5 pA;输入失调电流(Ios):3 pA
  • 静态电流(Iq):580 μA(整芯片)
  • 输出电流能力:典型 18 mA
  • 工作温度范围:-40℃ ~ +85℃
  • 封装:SOP-8

三、功能与保护特性

  • 内置补偿,稳定性良好,适用于无外部补偿的拓扑
  • 零漂移/自动稳零技术,确保长期低失调及优秀的直流精度
  • 反相位输入保护,增强输入端异常电压耐受性,提升系统可靠性
  • 轨到轨输入输出,实现大动态范围与低电源电压下的最大输入/输出摆幅

四、典型应用场景

  • 精密传感器信号调理(电流/电压传感、热电偶、桥式传感器)
  • 数据采集前端与 ADC 驱动
  • 工业过程控制与模拟控制回路
  • 低频滤波器、积分器与差分放大器
  • 电池供电与宽电压轨系统的精密前端

五、相较于 COS2182SR 的改进

作为 COS2182SR 的迭代产品,COS2182U 在失调电压、温漂与噪声控制方面进一步优化,同时在宽电源兼容性与输入保护上做了增强,整体提供更稳定的长期精度与更友好的系统集成特性。

六、封装与系统级注意事项

COS2182U 提供 SOP-8 封装,便于 PCB 布局与散热。建议在高精度应用中配合低噪声电源、良好接地和输入滤波,以发挥其低失调、低噪声与高 CMRR 的优势。对于高速或大电容负载,应关注补偿与相位裕度,按典型应用电路调试获得最佳性能。

如需原理图示例、详细参数表或参考设计,欢迎告知使用场景与系统要求,我们可提供更具体的设计建议。

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