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COSINE COS2272SR
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- COSINE COS2272SR
- Type
- COSINE
- Minimum package
- 4000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- COSINE
- Electronic Component
- COS2272SR
- Electronic Component
- 1
- Package
- SOP-8
- Electronic Component
- Operational Amplifier
- Electronic Component
- 0.22g
- Electronic Component
- 1
- Electronic Component
- Output
- Features
- Built-in
- Electronic Component
- BM0265013194
- Operating Temperature
- 40℃~+125℃
- Amplifier
- 2
- Output Current
- 35mA
- (SR)
- 1.5V/us
- Power Supply Voltage
- 3.3V~16V
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
COS2272SR 产品概述
一、产品简介
COS2272SR 是科山芯创（COSINE）推出的一款双路运算放大器，面向便携与工业级模拟前端设计。器件支持轨到轨输入与轨到轨输出，单电源工作电压范围宽（3.3V～16V），也可在双电源模式下工作（±1.75V～±8V），并内置补偿，保证在低增益（含单位增益）下稳定工作。封装为常用的 SOP-8，便于 PCB 布局与批量生产。
二、主要规格
- 放大器通道数：2
- 最大电源宽度 (Vdd-Vss)：16V
- 轨到轨：输入/输出均为轨到轨结构
- 增益带宽积 (GBW)：5 MHz
- 压摆率 (SR)：1.5 V/µs
- 输入失调电压 (Vos)：600 µV；温漂 2 µV/℃
- 输入偏置电流 (Ib)：约 1 pA；输入失调电流 (Ios)：1 pA
- 输入电压噪声密度 (eN)：30 nV/√Hz @1 kHz
- 共模抑制比 (CMRR)：12.1 dB（高精度差分测量时请评估）
- 静态电流 (Iq)：275 µA（典型）
- 输出电流：最大 35 mA
- 工作温度：-40℃ ～ +125℃
- 封装：SOP-8
三、性能亮点
- 轨到轨输入/输出设计可充分利用电源范围，适合低电压单电源系统。
- 低输入偏置电流（pA 级）适用于高阻抗传感器接口与电荷放大场景。
- 30 nV/√Hz 的输入噪声使其在要求较低噪声的放大与滤波应用中表现良好。
- 内置补偿与 5 MHz GBW、1.5 V/µs 的速率组合，适合低到中速信号链，如抗混滤波、缓冲与积分放大。
四、典型应用场景
- 传感器前端（热电偶、电容式/压电传感器接口）
- 便携式仪表与数据采集系统
- 主动滤波器、信号缓冲与驱动中等负载（输出电流最高 35 mA）
- 低功耗模拟电路与电池供电设备
五、封装与电路建议
- 建议在电源引脚附近增加去耦电容（0.1 µF 与 10 µF 并联）以保证瞬态稳定性。
- 对于高阻抗输入，应采用短回路、低泄漏 PCB 材料并注意孔径防污染，以维持 pA 级偏置电流优势。
- 若电路对差分精度或高 CMRR 有较高要求，请在电路设计阶段评估器件的 12.1 dB CMRR 表现并考虑差分放大或后级校准方案。
COS2272SR 在中低频、低噪与高阻抗接口场合表现均衡，是对成本与性能有综合要求的双路运放优选。
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