MAX4294

超小型、+1.8V、微功耗、满摆幅输入/输出运算放大器

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


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说明

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™).
MAX4291、MAX4292、MAX4294:引脚配置 MAX4291、MAX4292、MAX4294:引脚配置 放大+

关键特性

  • 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)

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
Part NumberAmps.Rail to RailVSUPPLY (Total)
(V)
VSUPPLY (Total)
(V)
ICC per Amp.
(µA)
VOS
(µV)
CMRR @DC
(dB)
PSRR @DC
(dB)
Input IBIAS
(nA)
Unity Gain BW
(MHz)
Slew Rate
(V/µs)
en
(nV/√Hz)
Package/PinsBudgetary
Price
minmaxtypmaxtyptypmaxtyptyp<See Notes
MAX4291 1Input/Output1.85.5100250090100550.50.270
SC70/5
SOT23/5
$0.70 @1k
MAX4292 2
SOIC (N)/8
UCSP (B)/9
UMAX/8
$1.61 @1k
MAX4294 4
SOIC (N)/14
TSSOP/14
$2.31 @1k
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Pricing Notes:
价格仅供参考,用于同类产品的比较。所提供报价为美元,需要依汇率折合成人民币。该价格将因当地关税、税率和汇率而异。有关特定订购量和指定版本的报价和供货问题,请参考:价格与供货网站或与指定代理商联系。

质量和环境数据

产品可靠性报告: MAX4294.pdf 
无铅封装的锡(Sn)晶须报告
型号   生产流程   工艺   样本量   不合格   FIT @ 25°C   FIT @ 55°C  

备注: 通过技术手段对故障率进行汇总,并映射到相关的材料部件号。 故障率与被测件的数量密切相关。

质量管理体系 >
环境管理体系 >

 
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