WMSIC Electronic Components

XBLW LMV321ATDTR

ModelLMV321ATDTR(XBLW)
PackageSOT-23-5
BrandXBLW
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 24+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
XBLW LMV321ATDTR(XBLW)
Type
XBLW
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
XBLW
Electronic Component
LMV321ATDTR(XBLW)
Electronic Component
1
Package
SOT-23-5
Electronic Component
Operational Amplifier
Electronic Component
0.045g
Electronic Component
1
Electronic Component
Output
Features
Built-in
Electronic Component
BM0264679572
Operating Temperature
40℃~+125℃
Amplifier
1
Output Current
40mA
(SR)
800V/ms
Power Supply Voltage
2.3V~5.5V

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

LMV321ATDTR (XBLW) 产品概述

一、简介

LMV321ATDTR 是芯伯乐(XBLW)推出的一款单通道、低功耗、低失调、宽带宽的运算放大器。器件支持轨到轨输入与轨到轨输出,内部已补偿,适合便携式、电池供电和工业级传感器前端等对低电流与较高带宽兼顾的应用场景。

二、主要规格

  • 放大器通道数:1
  • 单电源电压范围:2.3 V 至 5.5 V
  • 双电源电压范围:±1.15 V 至 ±2.75 V(总幅度可达约5.2 V)
  • 轨到轨输入/输出:支持
  • 增益带宽积(GBW):1 MHz
  • 压摆率(SR):0.8 V/µs(800 V/ms)
  • 输入失调电压(Vos):典型 1 mV
  • Vos 温漂:2.3 µV/℃
  • 输入偏置电流(Ib):1 pA
  • 输入失调电流(Ios):1 pA
  • 输入电压噪声密度:35 nV/√Hz @ 1 kHz
  • 共模抑制比(CMRR):90 dB
  • 静态电流(Iq):约 80 µA
  • 输出电流:可提供至 40 mA
  • 工作温度范围:-40 ℃ 至 +125 ℃
  • 封装:SOT-23-5

三、关键特性

  • 低功耗:静态电流仅约 80 µA,适合对能耗敏感的便携设备和电池供电系统。
  • 轨到轨 I/O:输入和输出接近电源轨,简化单电源系统设计,减少外部偏置需求。
  • 低失调与低温漂:Vos 仅 1 mV,温漂 2.3 µV/℃,利于精密直流放大与测量电路。
  • 良好频率响应:1 MHz 带宽和 0.8 V/µs 的压摆率,能满足多种信号调理与驱动要求。
  • 极低输入电流与较低噪声:输入偏置/失调电流为 pA 级,适合高阻抗传感器接口;35 nV/√Hz 的噪声性能在低频段表现良好。
  • 输出驱动能力:最高可驱动至 40 mA,适合驱动小功率负载或做缓冲放大。

四、典型应用

  • 传感器信号调理(温度、压力、光电等高阻抗传感器)
  • 单电源数据采集前端与缓冲器
  • 低功耗便携设备和手持仪表放大电路
  • 工业过程控制与驱动小负载
  • 滤波器、积分器和比较级(作为运放使用,非专用比较器)

五、封装与电源注意事项

  • 封装为 SOT-23-5,适合空间受限的 PCB 布局。
  • 推荐在电源引脚邻近放置去耦电容(如 0.1 µF 陶瓷)以抑制寄生振荡与电源噪声。
  • 虽为轨到轨器件,但在接近电源轨输出大电流或在极端温度下,仍建议仿真验证输出摆幅与线性度是否满足系统要求。
  • 最大电源差(Vdd-Vss)约 5.2 V,超出此值会损伤器件。

六、选型与使用建议

  • 若系统需更高带宽或更快压摆率,建议考察更高规格的放大器;若要求更低噪声或更高精度,可选低噪声/低漂移系列。
  • 对高阻抗传感器输入,应保持输入回路尽量短并采用好的隔离与滤波,避免漏电流与杂散电容引入误差。
  • 在驱动大电容负载时注意相位裕度与稳定性,必要时并联串联小电阻以提高稳定性。
  • 在工业级温度下使用前进行温度漂移测试,确保 Vos 与增益变化满足系统容差。

LMV321ATDTR(XBLW)以其低功耗、轨到轨特性与良好频率响应,为多种便携与工业信号处理提供了成本与性能的平衡选择。

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