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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