WMSIC Electronic Components

COSINE COS9152SRA

ModelCOS9152SRA
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 COS9152SRA
Type
COSINE
Minimum package
4000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
COSINE
Electronic Component
COS9152SRA
Electronic Component
1
Package
SOP-8
Electronic Component
Operational Amplifier
Electronic Component
0.177g
Electronic Component
1
Electronic Component
Output
Features
Built-in
Electronic Component
BM0265013196
Operating Temperature
40℃~+85℃
Amplifier
2
Output Current
50mA
(SR)
9V/us
Power Supply Voltage
3V~16V

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

COS9152SRA 产品概述

一、产品简介

COS9152SRA 是一款高性能双路运算放大器,集成在 SOP-8 封装中,面向精密模拟前端与便携式电源应用。器件具备轨到轨输入与轨到轨输出能力,宽工作电源范围与极低的直流误差特性,使其在传感器信号调理、数据采集及低功耗工业/医疗设备中表现优异。

二、主要参数

  • 放大器数:2 路
  • 轨到轨:输入与输出均为轨到轨结构
  • 增益带宽积(GBW):5 MHz
  • 输入失调电压(Vos):典型 600 μV
  • 输入失调电压温漂(Vos TC):1 μV/℃
  • 压摆率(SR):9 V/μs
  • 输入偏置电流(Ib):1 pA
  • 输入失调电流(Ios):1 pA
  • 输入电压噪声密度(eN):20 nV/√Hz @1 kHz
  • 共模抑制比(CMRR):125 dB
  • 静态电流(Iq):典型 480 μA
  • 输出电流:最高可达 50 mA
  • 工作温度:-40 ℃ 至 +85 ℃
  • 单电源电压:3 V ~ 16 V
  • 双电源电压:-8 V ~ -1.35 V 与 1.35 V ~ 8 V
  • 封装:SOP-8
  • 功能特性:内置补偿,简化闭环稳定性设计

三、应用场景

  • 高阻抗传感器前端(热电偶、电化学传感器、霍尔传感器)
  • 精密差分放大与仪表放大器前置级
  • 便携式医疗设备与手持测试仪器
  • 数据采集系统驱动 ADC 输入
  • 低功耗电池供电系统与工业过程控制

四、性能亮点与设计要点

  1. 低失调与低漂移:600 μV 的低输入失调与 1 μV/℃ 的温漂,有利于提高系统长期精度,减少校准频率。
  2. 极低输入偏置电流:1 pA 级别适合与高阻抗传感器直接连接,能显著降低因偏置电流引入的误差。建议在 PCB 布局中对高阻抗节点采用 guard ring 技术以进一步抑制泄漏电流影响。
  3. 轨到轨输入/输出:在 3 V 的低电源电压下仍能获得接近全摆幅输出,适合低电压电池系统,但在大负载或靠近电源轨时仍需注意输出摆幅裕量。
  4. 中等带宽与较快压摆:5 MHz GBW 与 9 V/μs 的 SR 能满足滤波器、采样保持与 ADC 驱动等中速应用;内置补偿简化闭环稳定性设计。
  5. 低噪声与高 CMRR:20 nV/√Hz 与 125 dB 的 CMRR 对微弱差分信号放大和共模干扰抑制有显著帮助。
  6. 容性负载驱动与保护:50 mA 的输出能力允许直接驱动中等负载,但驱动大电容或长电缆时建议在输出串联小阻以稳定驱动并降低振铃。

五、封装与可靠性

SOP-8 小型封装利于密集 PCB 布局和批量装配;器件工作温度覆盖工业级范围(-40 ℃ 至 +85 ℃),适合多数工业与消费类环境。静态电流 480 μA 提供了性能与功耗间的平衡,适合对能耗有一定要求的系统。

六、总结

COS9152SRA 将低失调、低偏置电流与轨到轨能力结合在一个双通道、内置补偿的运放中,适用于对精度、噪声和电压摆幅有较高要求的模拟前端设计。在选型与电路设计时建议参考具体负载、工作电源和输入源阻抗,配合适当的去耦和隔离元件以获得最佳系统性能。若需详细典型电路或封装尺寸,请参考产品数据手册。

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