WMSIC Electronic Components

COSINE COS6002SR

ModelCOS6002SR
PackageSOIC-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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
COSINE COS6002SR
Type
COSINE
Minimum package
4000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
COSINE
Electronic Component
COS6002SR
Electronic Component
1
Package
SOIC-8
Electronic Component
Operational Amplifier
Electronic Component
0.188g
Electronic Component
1
Electronic Component
Output
Features
Built-in
Electronic Component
BM0226493206
Operating Temperature
40℃~+125℃
Amplifier
2
Output Current
21mA
(SR)
700V/ms
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.

COS6002SR 产品概述

一、产品简介

COS6002SR 是科山芯创(COSINE)推出的一款高性能双路运算放大器,集低噪声、超高共模抑制比与轨到轨输入/输出于一身。器件在单电源 1.8V 至 5.5V(或双电源 -0.9V ~ 2.75V)范围内工作,最大电源宽度 6V,适合便携式、工业级和精密测量类应用。封装为 SOIC-8。

二、核心参数概览

  • 共模抑制比(CMRR):125 dB(高抑制能力,适合差分小信号测量)
  • 噪声密度(eN):40 nV/√Hz @ 1 kHz(低噪声)
  • 轨到轨输入、轨到轨输出(RRO/RRI)
  • 输入失调电压(Vos):典型 5 mV,温漂 2 µV/℃
  • 输入偏置电流(Ib):2.5 pA,失调电流(Ios):2.5 pA(超低偏置,适合高阻抗源)
  • 增益带宽积(GBP):1.5 MHz
  • 压摆率(SR):0.7 V/µs(700 V/ms)
  • 静态电流(Iq):50 µA(双路总体低功耗)
  • 输出电流:21 mA(短时驱动能力良好)
  • 工作温度范围:-40 ℃ ~ +125 ℃

三、主要特性与优势

  1. 高 CMRR(125 dB)能有效抑制共模干扰,适合差分放大与传感器前端。
  2. 低噪声(40 nV/√Hz)和低失调(5 mV)有利于小信号放大和精密测量。
  3. 输入/输出轨到轨设计最大化动态范围,适用于低电压单电源系统。
  4. 超低输入偏置电流(pA 级)非常适合高阻抗传感器、霍尔元件和电荷放大器等应用。
  5. 低功耗(50 µA)适合电池供电和功耗敏感系统。

四、典型应用场景

  • 精密差分放大器与仪表放大器前端
  • 传感器信号调理(热电偶、应变计、传感器桥)
  • 便携式数据采集与低功耗测量仪器
  • 医疗前端信号放大(非侵入式生理信号)
  • 通用信号缓冲、滤波和低频放大

五、使用建议与注意事项

  • 由于 GBP 为 1.5 MHz,建议在需要高闭环增益时评估带宽限制:例如在增益为 10 的情况下闭环带宽约 150 kHz。
  • 压摆率 0.7 V/µs 限制了大幅值高速波形的跟踪能力,适用于直流到中低频应用。
  • 轨到轨输出虽能接近电源轨,但在大电流或低温/高温时输出摆幅仍受限,关键设计需留出裕量。
  • 采用 pA 级偏置电流的器件对 PCB 污染与漏电流敏感,布局时注意保持输入回路清洁并使用防漏涂层或加大输入路径阻抗管理。
  • 电源去耦:每个供电引脚推荐紧邻放置 0.1 µF 瓷片电容与 1–10 µF 旁路电容以保证瞬态稳定性。

六、封装与可靠性

COS6002SR 提供 SOIC-8 封装,便于通用 PCB 工艺装配。器件工业级温度范围(-40 ℃ ~ +125 ℃),适合严苛环境下长期可靠运行。

七、典型电路建议

  • 低噪声放大器:使用 0.1–1 µF 输入旁路与稳健的反馈网络,避免过多的并联电容导致相位裕度下降。
  • 高阻抗源直连:建议在输入与传感器之间加入一颗高质量保护电阻,防止静电与差分瞬态电流冲击。
  • 带通滤波器:利用器件低漂移特性构建低频主动滤波,保证直流精度与漂移性能。

总结:COS6002SR 以其低噪、低偏置、轨到轨特性及工业温度等级,为中低频精密信号调理和低功耗便携设备提供了平衡的解决方案。选择时请综合考虑带宽、压摆率与输出摆幅需求,以确保系统性能与稳定性。

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