WMSIC Electronic Components

HGSEMI LMV822M/TR LMV822M

ModelLMV822M/TR
PackageSOP-8
BrandHGSEMI
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
HGSEMI LMV822M / TR
Type
HGSEMI
Minimum package
2500 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
HGSEMI
Electronic Component
LMV822M/TR
Electronic Component
1
Package
SOP-8
Electronic Component
Operational Amplifier
Electronic Component
0.222g
Electronic Component
1
Electronic Component
Output
Electronic Component
BM0264801313
Operating Temperature
40℃~+125℃
Amplifier
2
Output Current
12mA
(SR)
1.9V/us
Power Supply Voltage
2.5V~5V
Static Current(Iq)
500uA

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

LMV822M/TR 产品概述

一、概述

LMV822M/TR 是华冠(HGSEMI)推出的一款低电压、低噪声、双通道运算放大器,专为便携与低功耗系统设计。器件在宽电源电压下可实现轨到轨输出摆幅,并在低电压(典型工作 2.1–5.5V 范围内)下保持稳定性能。器件拥有约 6MHz 的增益带宽积 (GBW)、极低的输入噪声与偏置电流,使其适合对精度和噪声有一定要求的传感、滤波和缓冲应用。

(注:以下参数中“典型/最大/保证值”以器件数据手册为准,此处为汇总说明。)

二、主要规格

  • 放大器通道数:2(双通道)
  • 最大电源差(Vdd–Vss):5.5V
  • 单电源工作电压:典型支持 2.1V 至 5.5V(常见规格表中也列出 2.5–5.0V 兼容)
  • 轨到轨输出:支持,能驱动到接近电源轨的负载
  • 增益带宽积(GBW):6 MHz
  • 压摆率(SR):典型值约 1.9 V/μs(在 5V 电源下某些条件下可见更高瞬态响应)
  • 输入失调电压(Vos):最大 3.5 mV
  • 输入失调电压温漂(Vos TC):1 μV/°C
  • 输入偏置电流(Ib):约 100 nA
  • 输入失调电流(Ios):500 pA
  • 输入电压噪声密度(eN):45 nV/√Hz @ 1 kHz
  • 共模抑制比(CMRR):约 90 dB
  • 静态电流(Iq):典型约 470 μA/通道(单放大器),最大约 500 μA(典型值在 5V 条件下)
  • 输出电流能力:约 12 mA 峰值
  • 工作温度范围:-40 ℃ 至 +125 ℃

三、性能特点

  • 低电压启动:支持低至 ~2.1V 的单电源工作,便于电池供电系统和低压数字接口配合使用。
  • 轨到轨输出:在驱动沉重负载时仍能提供接近电源轨的输出摆幅,简化电源架构与外部偏置设计。
  • 低噪声与低偏置:45 nV/√Hz 的输入噪声密度与 100 nA 级的偏置电流,使本器件在传感前端与精密缓冲中表现良好。
  • 温度稳定性:输入失调温漂仅 1 μV/℃,有助于维持放大器在宽温区间(-40℃至+125℃)的直流精度。
  • 适中带宽与快速响应:6 MHz GBW 与接近 2 V/μs 的压摆率,在常见的滤波与信号调理场景中能提供足够的动态响应。

四、典型应用场景

  • 传感器信号调理:电阻桥、热电偶与低频传感器前端放大器,受益于低失调与低噪声。
  • 电池供电的便携设备:低电压工作与轨到轨输出简化了系统电源设计。
  • 有源滤波器与缓冲器:中等带宽、稳定性能适合二阶有源滤波与采样前缓冲。
  • 数据采集接口:为 ADC 提供驱动与缓冲,改善采样精度与抗干扰性。
  • 工业控制与仪表:宽温度范围与良好直流特性适应苛刻环境。

五、封装与型号

LMV822 系列在封装与通道数量上提供多样选择,方便不同 PCB 密度与热管理需求的匹配。有关 LMV822M/TR(SOP-8 封装)相关封装信息包括:

  • 单通道(封装选择):绿色 SC70-5、SOT23-5、SOP-8
  • 双通道(封装选择):绿色 SOP-8、MSOP-8(LMV822M 为双通道)
  • 四通道(封装选择):绿色 SOP-14、TSSOP-14 封装尺寸与引脚排列请参见器件机械图与标准数据手册。

六、设计注意事项

  • 电源去耦:为保证低噪声与稳定性,建议靠近器件的电源引脚并并联 0.1 μF 陶瓷与 1 μF 低 ESR 电容进行去耦。
  • 输入共模范围:器件输入共模电压范围包含地,但在接近负电源轨时可能影响直流性能,建议在关键精度链路上留出适当裕量。
  • 驱动能力与负载:典型输出电流约 12 mA,上拉/下拉能力受温度与电源电压影响;若驱动较大容性负载需增加隔离缓冲或输出阻尼。
  • 布局和接地:模拟地回路应尽量短且独立,信号与数字地分流后汇至单点,以减少共模噪声耦合。

最后提示:本文为器件概述,具体电气特性、典型应用电路与可靠性数据请参阅华冠(HGSEMI)LMV822M/TR 的正式数据手册与典型应用说明,以确保在最终设计中满足全部规范与可靠性要求。

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