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Maxim产品 - MAX4291介绍

MAX4291 - 超小型、+1.8V、微功耗、满摆幅输入/输出运算放大器

MAX4291是Maxim美信半导体公司的一款放大器产品，MAX4291是超小型、+1.8V、微功耗、满摆幅输入/输出运算放大器，本站介绍了MAX4291的封装应用图解、特点和优点、功能等，并给出了与MAX4291相关的Maxim元器件型号供参考。

MAX4291 - 超小型、+1.8V、微功耗、满摆幅输入/输出运算放大器 - 放大器 - 1.8V运算放大器，具有120dB开环增益，能够以0.017%的THD+N驱动2kΩ负载 - 美信半导体

产品概述

The MAX4291/MAX4292/MAX4294 family of micropower operational amplifiers operates from a 1.8V to 5.5V single supply or ±0.9V to ±2.75V dual supplies and has Rail-to-Rail input/output capabilities. These amplifiers provide a 500kHz gain-bandwidth product and 120dB open-loop voltage gain while using only 100µA of supply current per amplifier. The combination of low input offset voltage (±200µV) and high open-loop gain makes them ideal for low-power/low-voltage, high-precision portable applications.

The MAX4291/MAX4292/MAX4294 have an input common-mode range that extends to each supply rail, and their outputs swing to within 46mV of the rails with a 2kΩ load. Although the minimum operating voltage is specified at 1.8V, these devices typically operate down to 1.5V. The combination of ultra-low-voltage operation, rail-to-rail inputs/output, and low-power consumption makes these devices ideal for any portable/two-cell battery-powered system.

The single MAX4291 is offered in an ultra-small 5-pin SC70 package. The dual MAX4292 is offered in a space-saving 8-bump, 1.5mm x 1.5mm footprint, ultra chip-scale package (UCSP™).

关键特性
  • 以下关键特性由Maxim美信半导体提供：
  • Ultra-Low Voltage Operation—Guaranteed Down to 1.8V
  • 100µA Supply Current per Amplifier
  • 500kHz Gain-Bandwidth Product
  • 120dB Open-Loop Voltage Gain (RL = 100kΩ)
  • 0.017% Total Harmonic Distortion Plus Noise (THD + N) at 1kHz
  • Rail-to-Rail Input Common-Mode Range
  • Rail-to-Rail Output Drives 2kΩ Load
  • No Phase Reversal for Overdriven Inputs
  • Unity-Gain Stable for Capacitive Loads up to 100pF
  • 200µV Input Offset Voltage (MAX4292/MAX4294)
  • Single in Small 5-Pin SC70
  • Available in Ultra-Small Packages:
  • 5-Pin SC70 (MAX4291)
  • 8-Bump UCSP (MAX4292)
    • 热门应用
  • 2节电池供电系统
  • 汽车传感器
  • 基站/无线基础架构
  • 电池供电应用
  • 蜂窝电话
  • 计算机：台式机、工作站和服务器
  • 计算机：主板
  • 计算机：笔记本电脑
  • 数字测量/张力计量
  • GPS方案
  • MP3坞站：中级
  • 便携式电子设备
  • 可编程逻辑控制器(PLC)
  • 传感器放大器
  • 机顶盒
  • 应变仪
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