WMSIC Electronic Components

COSINE COS2177SR

ModelCOS2177SR
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 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
COSINE COS2177SR
Type
COSINE
Minimum package
4000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
COSINE
Electronic Component
COS2177SR
Electronic Component
1
Package
SOP-8
Electronic Component
Precision Op Amp
Electronic Component
0.177g
Electronic Component
1
Features
Built-in
Electronic Component
BM0226493161
Operating Temperature
40℃~+125℃
Amplifier
Electronic Component
Output Current
28mA
(SR)
0.7V/us
Power Supply Voltage
36V
Static Current(Iq)
330uA

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

COS2177SR — 精密双路运算放大器产品概述

一、产品简介

COS2177SR 是科山芯创(COSINE)推出的一款高精度双路运算放大器,专为要求超低失调、低噪声和高共模抑制的精密模拟前端设计。器件集成两路性能一致的放大单元,采用 SOP-8 封装,适合工业测量、传感器接口、数据采集和精密滤波等应用。

二、主要性能参数

  • 共模抑制比(CMRR):125 dB
  • 输入噪声密度(eN):8 nV/√Hz @ 1 kHz
  • 最大电源宽度(VDD–VSS):36 V(可单电源供电)
  • 输入失调电压(VOS):50 μV
  • 输入失调电压温漂(VOS TC):200 nV/°C
  • 输入偏置电流(IB):1 nA;输入失调电流(IOS):200 pA
  • 增益带宽积(GBP):2 MHz
  • 压摆率(SR):0.7 V/μs
  • 静态电流(Iq):330 μA(每对)
  • 输出驱动能力:典型 10 mA
  • 工作温度范围:−40 ℃ ~ +125 ℃
  • 放大器数:双路(Dual)
  • 封装:SOP-8

三、产品特色与优势

  • 超低失调电压与低温漂:50 μV 的低 VOS 结合 200 nV/°C 的温漂,使得长期测量和高精度差分放大场合误差极小,减少外部调零需求。
  • 优异的共模抑制与低噪声:125 dB 的 CMRR 与 8 nV/√Hz 的低噪声表现,适合微伏级信号的放大与精密差分测量。
  • 宽电源范围与工业级温度:支持单电源最高 36 V,工作温度覆盖 −40~125 ℃,可靠性满足工业环境。
  • 集成双路、封装紧凑:SOP-8 封装便于双通道匹配设计,节省 PCB 空间并降低系统成本。

四、典型应用场景

  • 精密传感器接口:应变计、桥式传感器、热电偶及微小差分信号放大。
  • 数据采集与仪器仪表:高精度 ADC 前端、差分采样放大器、低漂移滤波器。
  • 医疗电子与生物信号放大:对低频微弱生物电信号的前端放大处理(需注意对输入保护)。
  • 精密电源监测与控制回路:需要高 CMRR 与低噪声的测量场合。

五、设计建议与注意事项

  • 电源旁路:为保证低噪声性能,建议在器件电源引脚附近放置 0.1 μF 陶瓷旁路电容并与较大容值电解电容配合。
  • 输入保护:针对高电压或可能出现的输入反向电流场合,增加限流电阻或输入保护二极管可延长器件寿命。
  • 布局与接地:精密信号链需采用星形接地或划分模拟/数字地,输入与反馈回路走线短且对称以保持高 CMRR。
  • 负载与带宽:GBP 为 2 MHz、SR 为 0.7 V/μs,适用于中低频精密放大;驱动大电容或重负载时可能需要外加缓冲级以避免振荡或下降的瞬态响应。
  • 温漂与匹配:在极高精度系统中,建议对通道进行温度漂移校准或采用外部补偿电路以进一步降低系统误差。

六、封装信息与获取

COS2177SR 提供 SOP-8 封装,适配常见的贴片生产工艺。有关引脚定义、典型电路、参数曲线与应用电路建议,请参考科山芯创提供的正式数据手册及评估板资料,以确保在目标系统中的最佳性能实现。

Request for quote

Send RFQ

Use the form for single models, category sourcing, and multi-line BOM requirements.

Send your target model and quantity.

Product sourcing intelligence

Model, package, availability, and BOM fit reviewed before quotation.

WMSIC turns product data, package visuals, BOM context, and sourcing signals into practical RFQ notes for buyers.

Electronic component model and package intelligence review on an ESD-safe inspection bench

Model & package intelligence

Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.

BOM matching and alternative component comparison workstation with protected IC samples

BOM matching & alternatives

BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.

Electronic component sourcing availability dashboard with ESD-protected samples

Sourcing availability signal

Stock routes, quotation confidence, lead-time notes, and shipment feasibility are checked before sales follow-up.

Buyer sourcing scenarios

Examples of how common component sourcing requests are organized.

Typical RFQ scenarios based on the WMSIC form fields, catalog data, manual review steps, and shipment preparation workflow.

The buyer shares the full part number, package requirement, quantity, destination, and available product photos so the quotation can record the exact version under review.

Package confirmation Typical RFQ workflow

A multi-line BOM is organized into direct sourcing lines, lines that need package clarification, and lines where alternative-part review is permitted.

Mixed BOM triage Typical RFQ workflow

The original manufacturer part number, datasheet revision, application, critical limits, and acceptable changes are collected before possible candidates are discussed.

Obsolete-part review Typical RFQ workflow

Sample quantity, minimum packing, package format, target date, and courier destination are kept together in one RFQ conversation.

Small-batch request Typical RFQ workflow

Package photos, model markings, board context, and the quantity needed for repair help focus the sourcing review on the relevant version.

Repair batch evidence Typical RFQ workflow

When a suffix or package note is incomplete, the response records the open difference and requests buyer confirmation before procurement proceeds.

Model suffix clarification Typical RFQ workflow

Packing format, carton notes, invoice details, courier option, destination, and tracking handoff are coordinated around the confirmed order.

Export handoff Typical RFQ workflow

The request connects the previously used model, current demand, package evidence, target timing, and replenishment sourcing route.

Replenishment inquiry Typical RFQ workflow

Related products

Packaged components ready for RFQ.