WMSIC Electronic Components

DOWO LMV722-DW LMV722

ModelLMV722-DW
PackageSOP-8
BrandDOWO
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
DOWO LMV722-DW
Type
DOWO
Minimum package
4000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
DOWO
Electronic Component
LMV722-DW
Electronic Component
1
Package
SOP-8
Electronic Component
Operational Amplifier
Electronic Component
0.16g
Electronic Component
1
Electronic Component
Output
Features
Built-in
Electronic Component
BM0231110384
Operating Temperature
40℃~+125℃
Amplifier
2
Output Current
150mA
(SR)
8.5V/us
Power Supply Voltage
2.1V~5.5V

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

LMV722-DW 产品概述

一、概述与定位

LMV722-DW 是一款双路轨到轨输入/输出低功耗运算放大器,适用于低电压和电池供电系统。器件由 DOWO(东沃)生产,SOP-8 封装,针对便携仪表、传感器前端、音频缓冲与通用信号调理等应用场景优化设计。

二、主要特性

  • 双路放大器,支持单电源工作电压 2.1V 至 5.5V,双电源对称范围 ±1.05V 至 ±2.75V。最大电源差为 5.5V。
  • 轨到轨输入与输出,便于在低电压系统中充分利用电源范围。
  • 增益带宽积(GBP)10MHz,适合中等带宽放大与滤波器设计。
  • 压摆率(SR)8.5V/µs,支持快速边沿响应与一定的输出驱动速度。
  • 输出驱动能力达 150mA,能够驱动较低阻抗负载或缓冲器件。
  • 静态电流(Iq)约 400µA/对,适合对功耗有控制要求的应用。

三、精度与噪声

  • 输入失调电压 500µV,温漂仅 2.6µV/℃,有利于直流精度要求较高的测量电路。
  • 输入偏置电流 1pA,失调电流 10pA,适合高阻抗传感器接口。
  • 噪声密度 9.5nV/√Hz(1kHz),在音频和低频测量中表现良好。
  • 共模抑制比(CMRR)65dB,差分抑制能力适中。

四、可靠性与环境

  • 工作温度范围 -40℃ 至 +125℃,适用于工业级温度环境。
  • 低功耗与宽温度范围结合,适合长期现场部署和便携式设备。

五、设计注意事项

  • 虽为轨到轨器件,但在接近电源轨时仍建议在布局上保留一定裕量以确保线性与噪声性能。
  • 对于高精度直流放大,应关注失调电压与温漂,必要时使用外调零或后续校准。
  • 输出驱动 150mA 表明可直接驱动小功率负载,但长时间大电流输出会增大封装功耗与温升,需考虑散热与驱动占空比。
  • 在高速切换或驱动容性负载时,加上适当的阻尼网络可防止振铃与不稳定。

六、典型应用

  • 传感器前端(热电偶、压阻、霍尔等高阻抗信号放大)
  • 手持仪表与便携测量设备
  • 音频前置放大与缓冲
  • 精密采样与信号调理模块

七、封装与选型建议

LMV722-DW 提供 SOP-8 封装,便于常规 PCB 安装与散热管理。选型时请依据系统供电方案、带宽与输出驱动要求权衡;若需更高精度或更低噪声,可选取失调更低或 GBP 更高的替代型号。

以上为 LMV722-DW 的产品概述与工程参考要点,便于快速判断其在系统中是否满足电气与环境要求。若需典型电路、频率响应或稳定性仿真数据,可进一步提供查询或设计建议。

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