Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
COSINE COS8091SOT
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- COSINE COS8091SOT
- Type
- COSINE
- Minimum package
- 3000 编带
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- COSINE
- Electronic Component
- COS8091SOT
- Electronic Component
- 1
- Package
- SOT23-5
- Electronic Component
- Operational Amplifier
- Electronic Component
- 0.048g
- Electronic Component
- 1
- Electronic Component
- Output
- Features
- Built-in
- Electronic Component
- BM0265013186
- Operating Temperature
- 40℃~+125℃
- Amplifier
- 1
- Output Current
- 110mA
- (SR)
- 250V/us
- Power Supply Voltage
- 2.5V~5.5V
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
COS8091SOT 产品概述
本文档简要介绍 COSINE（科山芯创）COS8091SOT 单路运算放大器的关键特性、性能参数、应用场景与设计建议，便于工程师快速评估与选型。
一、主要特性
- 单路运算放大器，内部补偿，适合单位增益稳定应用。
- 轨到轨输入与输出，兼容低压单电源系统。
- 高速与低噪声结合：增益带宽积 200 MHz，压摆率 250 V/µs，输入电压噪声密度 9 nV/√Hz（1 kHz）。
- 极低输入偏置与失调：输入偏置电流 2.5 pA，输入失调电流 1 pA；典型输入失调电压 10 mV（部分批次典型值可达 5 mV）。
- 宽工作温度范围 -40 ℃ 至 +125 ℃，单电源 2.5 V～5.5 V（或双电源 ±2.25 V），最大电源差可达 9 V。
- 静态电流低至 4.5 mA，输出驱动能力强，峰值输出电流可达 110 mA。封装为 SOT23-5，适合便携与空间受限应用。
二、性能参数概览
- 增益带宽积(GBW)：200 MHz
- 压摆率(SR)：250 V/µs
- 输入失调电压(Vos)：典型 10 mV（视批次）
- 输入失调电压温漂：10 µV/℃
- 输入偏置电流(Ib)：2.5 pA；失调电流(Ios)：1 pA
- 输入电压噪声密度：9 nV/√Hz @1 kHz
- 共模抑制比(CMRR)：125 dB
- 静态电流(Iq)：4.5 mA；输出电流：110 mA
三、主要优势
- 在低功耗与高驱动能力之间取得平衡，适合驱动 ADC、转换器或小型负载。
- 轨到轨 I/O 使其在低电压系统中能最大化动态范围，简化系统供电设计。
- 高 CMRR 与低噪声特性适合精密传感器前端与差分放大器应用。
- SOT23-5 封装便于小体积设计与量产贴片工艺。
四、典型应用
- 便携式数据采集与传感器接口（温度、压力、应变等）
- ADC 驱动与缓冲放大器
- 主动滤波器、仪表放大器前置级
- 精密参考放大、信号调理、电流检测放大
五、设计与布局建议
- 电源端靠近芯片放置 0.1 µF 陶瓷去耦，必要时并联 1 µF～10 µF 低 ESR 电容以抑制低频噪声。
- 输出驱动大电容负载时，建议在输出与负载之间加入小电阻（10 Ω～50 Ω）以保证稳定性。
- 输入端避免长导线引入噪声，差分信号路径应尽量对称；高阻输入场合注意泄漏与清洁度。
- 在高精度应用中，考虑温漂与封装应力对失调电压的影响，必要时采用外部校准。
六、封装与选型
- 型号：COS8091SOT（科山芯创）
- 封装：SOT23-5，适合表面贴装生产。
- 选型备注：确认所需输入失调、带宽与输出驱动能力后选型；如需更低失调或更高精度，可咨询供应商获取批次典型值与测试数据。
如需电路示例、典型应用电路图或完整规格书（Datasheet）以便更深入评估，请提供您的联系或项目需求，我可以协助准备针对性的设计参考。
Request for quote
Send RFQ
Use the form for single models, category sourcing, and multi-line BOM requirements.
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.
BOM matching & alternatives
BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.
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.
A multi-line BOM is organized into direct sourcing lines, lines that need package clarification, and lines where alternative-part review is permitted.
The original manufacturer part number, datasheet revision, application, critical limits, and acceptable changes are collected before possible candidates are discussed.
Sample quantity, minimum packing, package format, target date, and courier destination are kept together in one RFQ conversation.
Package photos, model markings, board context, and the quantity needed for repair help focus the sourcing review on the relevant version.
When a suffix or package note is incomplete, the response records the open difference and requests buyer confirmation before procurement proceeds.
Packing format, carton notes, invoice details, courier option, destination, and tracking handoff are coordinated around the confirmed order.
The request connects the previously used model, current demand, package evidence, target timing, and replenishment sourcing route.
Related products
Packaged components ready for RFQ.
