WMSIC Electronic Components

SGMICRO SGM80581XN5G/TR SGM80581XN5G

ModelSGM80581XN5G/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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
SGMICRO SGM80581XN5G / TR
Type
SGMICRO
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SGMICRO
Electronic Component
SGM80581XN5G/TR
Electronic Component
1
Package
SOT-23-5
Electronic Component
Operational Amplifier
Electronic Component
0.046g
Electronic Component
1
Electronic Component
Output
Features
Built-in
Electronic Component
BM0008733562
Operating Temperature
40℃~+125℃
Amplifier
1
Output Current
150mA
(SR)
160V/us
Static Current(Iq)
4.5mA

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

SGM80581XN5G/TR 产品概述

SGM80581XN5G/TR 是 SGMICRO(圣邦微)推出的一款单路轨到轨输入/轨到轨输出运算放大器,采用 SOT-23-5 小封装,面向对低失调、低偏置、高速及单电源宽动态要求的便携与工业应用。器件集成内部补偿,便于在 unity-gain(单位增益)下稳定工作,兼顾精度与驱动能力,是信号调理与缓冲场合的理想选择。

一、主要参数一览

  • 放大器数:1(单通道)
  • 轨到轨输入 / 轨到轨输出(Rail-to-Rail I/O)
  • 输入失调电压 (Vos):典型 1 mV
  • 输入失调电压温漂 (Vos TC):6.5 μV/℃
  • 压摆率 (SR):160 V/μs
  • 输入偏置电流 (Ib):2 pA(极低偏置)
  • 共模抑制比 (CMRR):71 dB
  • 静态电流 (Iq):4.5 mA
  • 输出电流:最大 150 mA(强驱动能力)
  • 工作温度范围:-40 ℃ 到 +125 ℃(工业级)
  • 内置补偿:支持单位增益稳定
  • 封装:SOT-23-5(紧凑、适合空间受限电路板)

二、功能与性能亮点

  • 精确的低失调与低漂移:典型 1 mV 的输入失调与 6.5 μV/℃ 的温漂,使其在直流精密放大和高精度信号采集(如传感器前端)中表现稳定,减少后续校准负担。
  • 轨到轨输入/输出:适合单电源系统,输入共模范围覆盖电源轨,输出可接近供电轨,最大限度利用电源电压,利于低电压系统设计。
  • 极低输入偏置(2 pA):非常适合与高阻抗源(如电容式传感器、电极、电荷放大器)直接连接,降低偏置引起的误差。
  • 高压摆率(160 V/μs)与较高输出驱动(150 mA):既能处理快速信号边沿,也能驱动低阻负载或后级器件,适用于模拟前端、滤波器、驱动缓冲等。
  • 经济的静态功耗(Iq 4.5 mA):在兼顾性能的同时,适合便携或电池供电系统使用。

三、典型应用场景

  • 传感器信号调理:温度、压力、流量、称重等传感器放大与缓冲,受益于低失调、低漂移与低偏置特性。
  • 数据采集前端:作为采样保持、缓冲放大器或滤波器中的主动元件,支持单电源低压系统。
  • 精密直流放大器与差分放大:用于对小信号进行高精度放大,减少系统误差。
  • 驱动低阻抗负载:音频缓冲、驱动继电器/小电流执行器或下一级 ADC 的采样电容。
  • 便携式与工业控制设备:SOT-23-5 小封装与工业级温度范围适合空间受限和恶劣环境应用。

四、设计与应用建议

  • 电源与去耦:为确保高速与低噪声性能,建议在靠近器件电源引脚放置 0.1 μF 陶瓷去耦电容,辅以 1–10 μF 旁路电容以稳定低频。
  • 输入保护与高阻抗布线:当测量高阻抗信号时,采用短路径布线并考虑输入防护(限流电阻、保护二极管),同时可采用护环(guard)技术减少泄漏与偏置影响。
  • 驻波稳定与容性负载:若需驱动较大容性负载,建议在输出端串联小阻(10–100 Ω)以抑制振铃与提升稳定性。
  • 温度考虑:器件支持 -40 ℃ 到 +125 ℃,在高温工况下需注意功耗与散热,合理布局减少热聚集。
  • PCB 布局:将模拟地与数字地分离,信号回路短且连续,输入引脚远离开关/大电流走线,降低干扰耦合。

五、封装与生产工艺

SOT-23-5 小封装便于表贴加工,适合自动贴装与回流焊流程,适配常见的小尺寸 PCB 设计。单通道设计便于以低成本集成到多通道系统中,或用于替换更大封装以节省空间。

总结:SGM80581XN5G/TR 在精度(低 Vos、低漂)、微电流输入、宽动态(轨到轨 I/O)与高速驱动能力(高 SR、150 mA 输出)之间取得了良好平衡,适用于传感器前端、便携设备和工业控制等多种场合。合理的电源去耦和布局能最大化其性能表现。若需进一步参数(如电源电压范围、输出摆幅、噪声指标或典型应用电路),建议参阅官方数据手册或联系 SGMICRO 技术支持获取完整电气特性曲线与参考设计。

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