WMSIC Electronic Components

HGSEMI LMV721AM5/TR LMV721AM5

ModelLMV721AM5/TR
PackageSOT-23-5
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 Date code within 2 years

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
HGSEMI LMV721AM5 / TR
Type
HGSEMI
Minimum package
3000 编带

Technical parameters

Electronic Component
Electronic Component
Electronic Component
HGSEMI
Electronic Component
LMV721AM5/TR
Electronic Component
1
Package
SOT-23-5
Electronic Component
Operational Amplifier
Electronic Component
0.046g
Electronic Component
1
Electronic Component
Output
Electronic Component
BM0229355074
Operating Temperature
40℃~+125℃
Amplifier
1
Output Current
70mA
(SR)
9V/us
Power Supply Voltage
2.1V~5.5V
Static Current(Iq)
1.1mA

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

LMV721AM5/TR 产品概述

一、产品简介

LMV721AM5/TR 是华冠(HGSEMI)推出的一款单路低噪声、低压、低功耗运算放大器,提供轨到轨输入与轨到轨输出能力,适用于对电源电压、功耗和噪声有严格要求的便携与工业级应用。器件在小型 SOT-23-5 封装中实现高性能,便于空间受限的电路板布局。

二、主要性能特点

  • 共模抑制比(CMRR):82 dB,保证差分输入信号的稳定放大。
  • 噪声密度(eN):8 nV/√Hz @10 kHz,低噪声设计,适合传感器前端与精密信号调理。
  • 增益带宽积(GBP):11 MHz,配合 9 V/µs 的压摆率,可满足中频段精确放大与快速信号响应。
  • 轨到轨输入/输出,单电源工作电压范围 2.1 V ~ 5.5 V(最大电源宽度 7.5 V),亦支持双电源 ±1.05 V ~ ±2.75 V。
  • 低静态电流(Iq):1.1 mA,适合电池供电系统。
  • 输出驱动能力:峰值输出电流可达 70 mA,可直接驱动轻负载。
  • 极低输入偏置电流/失调电流:Ib / Ios ≈ 1 pA,适合高阻抗传感器接口。
  • 输入失调电压(Vos):3.5 mV,温漂(Vos TC):2.4 µV/°C。
  • 宽温度范围:-40 ℃ ~ +125 ℃,满足工业级可靠性需求。

三、典型应用场景

  • 电池供电仪器与便携式设备的前端放大与电平移位。
  • 传感器信号调理(温度、压力、光电、称重传感器等)与高阻抗源采集。
  • 数据采集系统的缓冲与采样保持放大器。
  • 低噪声滤波器(主动滤波)、电压基准缓冲与驱动小型执行器或指示器。

四、设计与使用建议

  • 电源旁路:紧靠 Vcc/Vee 引脚放置 0.1 μF 陶瓷电容,抑制高频噪声并保证稳定性。
  • 驱动能力:虽然峰值输出电流高达 70 mA,但连续大电流输出会增加功耗与热应力,建议在驱动较大容性或阻性负载时评估功耗与散热。
  • 稳定性:在驱动较大电容负载时可加入小并联电阻或串联输出电阻以防振荡。
  • 工作电压:轨到轨特性在靠近电源轨时仍有一定限值,若要求高精度靠近轨端工作,请在系统设计中预留裕量。
  • PCB 布局:高阻抗输入信号须缩短走线并避免噪声源相邻,保护极低的输入偏置与偏移性能。

五、封装与供货

  • 封装:SOT-23-5,适合小型化产品与自动贴装生产。
  • 品牌:HGSEMI(华冠)。
  • 器件定位:单路运算放大器,适合要求低噪声、低压、低功耗和工业温度等级的应用。

LMV721AM5/TR 结合低噪声、轨到轨特性与低功耗优势,为便携式与工业信号处理提供了实用且易于集成的放大解决方案。

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