WMSIC Electronic Components

CJ OP07C

ModelOP07C
PackageSOP-8
BrandCJ
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
CJ OP07C
Type
CJ
Minimum package
4000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
CJ
Electronic Component
OP07C
Electronic Component
1
Package
SOP-8
Electronic Component
Precision Op Amp
Electronic Component
1g
Electronic Component
1
Electronic Component
BM0264603921
Operating Temperature
10℃~+85℃
Static Current(Iq)
3.8mA
Electronic Component
Electronic Component
Electronic Component
4000
(GBW)
500kHz
Common Mode (CMRR)
100dB
Current(Ib)
28nA

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

OP07C 产品概述

一、概述与定位

OP07C 是一款面向精密直流和低频模拟信号处理的运算放大器,CJ(江苏长电/长晶)品牌,SOP-8 封装。该器件以极低的输入失调电压和温漂为核心优势,适用于需要高直流精度和长期稳定性的测量与信号调理场合。其主要性能指标能够满足精密放大、桥式传感器放大、低频滤波与积分电路等对直流精度要求高的应用。

二、关键参数(用户提供的典型值)

  • 输入失调电压 (Vos):150 μV
  • 输入失调电压温漂 (Vos TC):1.8 μV/℃
  • 增益带宽积 (GBW):500 kHz
  • 共模抑制比 (CMRR):100 dB
  • 输入偏置电流 (Ib):28 nA
  • 静态电流 (Iq):3.8 mA(每通道)
  • 输入失调电流 (Ios):8 nA
  • 工作温度范围:-10 ℃ ~ +85 ℃
  • 封装:SOP-8
    这些参数体现了该器件在直流精度、温度稳定性和中低频响应方面的良好平衡。

三、主要特性与优势

  1. 极低的输入失调电压与温漂
    • 150 μV 的失调电压和 1.8 μV/℃ 的温漂适合对长期稳定性和微小直流偏移敏感的应用,减少外部补偿与频繁校准的需求。
  2. 良好的共模抑制性能
    • 100 dB 的 CMRR 能有效抑制共模干扰与电源不对称带来的误差,尤其在差分测量与桥式传感器场合表现突出。
  3. 适用于中低频精密信号链
    • 500 kHz 的 GBW 表明该器件在直流到低中频(几 kHz 至几十 kHz)范围内可保持高精度放大,适合传感器前端与低频滤波器设计。
  4. 低功耗、易于热管理
    • 每通道 3.8 mA 的静态电流在精密性能与功耗之间取得折中,便于在多通道系统中控制总体耗散。

四、典型应用场景

  • 精密仪表与测量放大器:电压测量、低频信号采集、精密差分放大。
  • 传感器信号调理:应变计/桥式传感器、热电偶、低输出电阻的传感器接口。
  • 精密积分器与低频有源滤波:需要低失调与低漂移的积分或低通滤波电路。
  • 基准缓冲与放大:在需要保持高直流精度的基准源缓冲电路中使用。
  • 医疗与实验室仪器:低噪声、低失调的信号处理前端。

五、设计与使用建议

  • 电源去耦:在靠近器件电源引脚处放置高频去耦电容(例如 0.1 μF)与一个低频旁路电容,以保证电源稳定,减少电源噪声对直流精度的影响。
  • 输入保护与偏置管理:对于高阻抗传感器输入,应考虑输入防静电与限流保护;输入偏置电流 28 nA 会在高源阻抗下产生明显电压误差,应用偏置补偿或降低源阻抗来减小影响。
  • 温度与漂移控制:尽管器件本身温漂低,若需最高精度,应保证环境温度稳定并在设计中考虑漂移补偿与校准策略。
  • 布局注意事项:差分信号路径尽量对称,避免长输入走线与噪声耦合;接地应采用星型或平面接地来降低地回路电阻与杂散干扰。
  • 偏置调零:若系统允许,可设计外部微调电路或使用静态校准来进一步降低系统级失调。

六、封装与可靠性注意

  • SOP-8 小型化封装便于批量装配与自动化贴装,适合中小型仪器与模块化设计。
  • 使用与存储环境应符合器件工作温度范围(-10 ℃ ~ +85 ℃);如需更宽温度范围,应向供应商确认是否有其他等级型号或选型建议。
  • 焊接与回流工艺需遵循长晶(CJ)提供的封装工艺规范以保证焊接可靠性与长期电气性能。

七、选型与替代考虑

OP07C 在“极低失调、低温漂”的细分领域具有竞争力;若项目对更高带宽或更低功耗有强烈需求,可比较其他放大器产品线,但往往会在失调或温漂方面做出权衡。选型时建议结合系统的频带要求、输入源阻抗、温度环境与功耗预算综合评估。

总结:CJ(长晶)品牌的 OP07C 以其优异的直流精度和温漂特性,适合需要高稳定性的精密信号处理任务。合理的电路布局、输入保护与电源去耦能进一步发挥其性能,满足精密测量与传感器信号调理的应用需求。

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