WMSIC Electronic Components

SGMICRO SGM8425AYN5G/TR SGM8425AYN5G

ModelSGM8425AYN5G/TR
PackageSOT-23-5
BrandSGMICRO
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
SGMICRO SGM8425AYN5G / TR
Type
SGMICRO
Minimum package
3000 托盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SGMICRO
Electronic Component
SGM8425AYN5G/TR
Electronic Component
1
Package
SOT-23-5
Electronic Component
Operational Amplifier
Electronic Component
0.04g
Electronic Component
1
Electronic Component
Output
Electronic Component
BM0225245140
Operating Temperature
40℃~+85℃
Amplifier
1
Output Current
80mA
(SR)
16V/us
Power Supply Voltage
4.5V~30V
Static Current(Iq)
1.6mA

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

SGM8425AYN5G/TR 运算放大器产品概述

SGM8425AYN5G/TR 是圣邦微(SGMicro)推出的一款单通道轨到轨运算放大器,集精度、低噪声与较高驱动能力于一身,适用于空间受限且对线性度与带宽有一定要求的模拟前端设计。封装为 SOT-23-5,支持卷带盘装(TR),便于自动化贴片生产与批量采购。

一、核心性能亮点

  • 输入/输出:轨到轨输入与轨到轨输出(rail-to-rail),提高在低电压和高动态范围场合的可用信号摆幅。
  • 增益带宽积(GBW):9 MHz,适合中等带宽放大与滤波器设计。
  • 压摆率(SR):16 V/μs,提供较快的瞬态响应与较短的建立时间,利于驱动采样保持、抗混叠滤波器等对瞬态要求严格的应用。
  • 输入失调电压(Vos):典型 1 mV,低失调保证直流精度。
  • 失调温漂(Vos TC):4.9 μV/°C,长期温度稳定性良好。
  • 输入电压噪声密度(eN):80 nV/√Hz @1 kHz,适合对噪声有一定要求的传感器前端与音频应用。
  • 共模抑制比(CMRR):62 dB,直流共模误差抑制适中。
  • 静态电流(Iq):1.6 mA,综合了功耗与动态性能的折衷,适合电池供电或功耗受控的系统。
  • 输出驱动能力:典型 80 mA,能够直接驱动较低阻抗负载或作为后级驱动器使用。
  • 工作温度范围:-40 ℃ ~ +85 ℃,满足工业级环境要求。
  • 电源范围:单电源 4.5 V ~ 30 V;双电源工作可在 ±2.25 V 至 ±15 V(等效 VEE~VCC 范围)之间选择,兼容多种系统电源拓扑。
  • 封装:SOT-23-5,适合 PCB 空间受限的便携与嵌入式应用。

二、典型应用场景

  • 传感器信号调理:低失调与低噪声使其适合温度、压力、应变计等传感器的前置放大器。
  • ADC 驱动与采样保持(S/H):较高的 SR 和 9 MHz GBW 可满足中等采样率的数据采集系统输入缓冲与滤波器。
  • 主动滤波器与放大器阵列:用于低通/带通/积分等模拟滤波电路,提供稳定的增益与快速响应。
  • 电源与电流检测:轨到轨特性配合较宽电源范围,适合电源测量与电池管理系统(BMS)中的放大器需求。
  • 便携式/移动设备模拟前端:SOT-23-5 封装与适中的静态电流适合空间与功耗受限的便携设计。
  • 音频与低频信号链:噪声特性与带宽在便携音频前端或低频放大场合表现良好。

三、设计注意事项与推荐实践

  • 电源去耦:为维持低噪声与高瞬态性能,建议在靠近芯片的 VCC 与 VEE(或 GND)引脚处放置 0.1 μF 及 1 μF 去耦电容。
  • 负载与驱动:虽然输出电流可达 80 mA,但在驱动容性负载(如较大电容或长线缆)时,可能出现振荡或超调,建议在输出与负载间串联小电阻(如 10 Ω~100 Ω)以稳定响应。
  • 布局:模拟地与数字地分离,尽量缩短输入引脚到器件的走线,减小噪声拾取。输入源与反馈元件应靠近放大器输入端布置以提高直流与噪声性能。
  • 温度漂移管理:Vos TC 为 4.9 μV/°C,仍应在对温度敏感的精密测量应用中配合温度补偿或周期性校准策略使用。
  • 增益与稳定性:在高增益或高带宽应用中,注意闭环增益与带宽匹配;必要时采用补偿网络控制相位裕量以防止振荡。

四、器件封装与物料信息

  • 型号:SGM8425AYN5G/TR
  • 品牌:SGMICRO(圣邦微)
  • 封装:SOT-23-5,适用于自动化贴片(TR 表示带卷带卷装)
  • 温度等级:工业级(-40 ℃ ~ +85 ℃)

总结:SGM8425AYN5G/TR 是一款性能均衡的单通道轨到轨运算放大器,兼顾低失调、低噪声与较强输出驱动能力,适用于传感器前端、ADC 驱动、主动滤波与便携式模拟电路等场景。合理的布局、去耦以及负载匹配能够充分发挥其在带宽与瞬态响应方面的优势。若需更详细的电气特性曲线、典型应用电路或封装引脚排列,建议参考厂商完整数据手册。

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