WMSIC Electronic Components

SGMICRO SGM8965A-2XS8G/TR SGM8965A

ModelSGM8965A-2XS8G/TR
PackageSOIC-8
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 SGM8965A-2XS8G / TR
Type
SGMICRO
Minimum package
4000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
SGMICRO
Electronic Component
SGM8965A-2XS8G/TR
Electronic Component
1
Package
SOIC-8
Electronic Component
Operational Amplifier
Electronic Component
0.174g
Electronic Component
1
Electronic Component
Output
Features
Built-in
Electronic Component
BM0256925221
Operating Temperature
40℃~+125℃
Amplifier
2
Output Current
85mA
(SR)
30V/us
Power Supply Voltage
2.2V~5.5V

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

SGM8965A-2XS8G/TR 产品概述

一、概述

SGM8965A-2XS8G/TR 是圣邦微(SGMICRO)推出的一款双通道轨到轨运算放大器,封装为 SOIC-8。器件支持轨到轨输入与输出,工作电源范围宽(2.2V ~ 5.5V),并在-40℃ ~ +125℃的温度范围内稳定工作,适用于对偏置电流、输入失调和噪声有严格要求的精密信号链设计。

二、主要特性

  • 双通道放大器,内置补偿,易于稳定闭环应用
  • 轨到轨输入与轨到轨输出,低压单电源(最低2.2V)下亦可满幅工作
  • 增益带宽积(GBW):50 MHz,适合中高速闭环增益应用
  • 压摆率(SR):30 V/µs,保证快速边沿响应与较小的瞬态失真
  • 输入失调电压 Vos:典型 50 µV,温漂 Vos TC:1.4 µV/℃
  • 输入偏置电流 Ib、输入失调电流 Ios:典型 1 pA,适合超高阻抗传感器接口
  • 输入电压噪声密度 eN:5.5 nV/√Hz(@100 kHz)
  • 共模抑制比 CMRR:94 dB,差分精度良好
  • 静态电流 Iq:5 mA(典型),输出驱动能力可达 85 mA

三、关键参数解读

  • 低失调与低失调温漂(50 µV / 1.4 µV/℃)使 SGM8965A 在精密测量、零点校准较少的系统中表现优异。
  • 极低的输入偏置电流(1 pA)适合与高阻抗传感器(电容、热电偶放大前级、霍尔传感器等)直接相连,减少偏置引入误差。
  • 50 MHz 的 GBW 与 30 V/µs 的压摆率意味着在中等闭环增益下仍能保持良好带宽与瞬态性能,适用于驱动 ADC 前端、活动滤波器和差分信号放大。
  • 轨到轨 I/O 与较宽的供电范围(2.2–5.5 V)方便在单节至多节电池供电、便携设备以及工业电源系统中使用。
  • 85 mA 的输出电流能力允许直接驱动中等负载或短时推挽输出需求,但在持续大电流负载下需注意功耗与封装散热。

四、典型应用场景

  • 精密数据采集与 ADC 驱动电路
  • 传感器接口与信号调理(高阻抗传感器)
  • 便携式仪表、手持设备的低压前端放大
  • 主动滤波器、积分/微分放大器和通用放大器模块
  • 工业控制与过程测量(宽温度范围适应严苛环境)

五、封装与设计建议

  • 封装形式:SOIC-8,适用于常规 PCB 装配与量产。
  • 布局建议:为保证低噪与稳定性,靠近电源引脚放置充分的去耦电容(例如 0.1 µF 与 1 µF),输入端使用短走线并避免高阻节点被噪声耦合。
  • 热管理:在高环境温度或长时间大电流输出条件下,关注封装温升与 PCB 热散,以免影响长期可靠性。
  • 应用注意:器件已内置补偿,通常能在常见闭环配置下稳定工作;在特殊高增益或高带宽应用中,建议通过仿真或实测校验相位裕度与抖动表现。

SGM8965A-2XS8G/TR 以其低失调、超低偏置电流、轨到轨特性及宽工作温度,成为精密测量与便携/工业信号链中兼顾性能与灵活性的优秀选择。如需进一步参数曲线、典型应用电路或封装引脚图,请参考厂家数据手册。

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