MAX4240:单/双/四路、+1.8V/10µA、SOT23封装、超摆幅运算放大器

The MAX4240–MAX4244 family of micropower op amps operate from a single +1.8V to +5.5V supply or dual ±0.9V to ±2.75V supplies and have Beyond-the-Rails™ inputs and rail-to-rail output capabilities. These amplifiers provide a 90kHz gain-bandwidth product while using only 10µA of supply current per amplifier. The MAX4241/MAX4243 have a low-power shutdown mode that reduces supply current to less than 1µA and forces the output into a high-impedance state. 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, Beyond-the-Rails inputs, rail-to-rail outputs, and ultra-low power consumption makes these devices ideal for any portable/two-cell battery-powered system. These amplifiers have an input common-mode range that extends 200mV beyond each rail, and their outputs typically swing to within 9mV of the rails with a 100kΩ load. Beyond-the-Rails input and rail-to-rail output characteristics allow the full power-supply voltage to be used for signal range. The combination of low input offset voltage, low input bias current, and high open-loop gain makes them suitable for low-power/low-voltage precision applications. The MAX4240 is offered in a space-saving 5-pin SOT23 package. All specifications are guaranteed over the -40°C to +85°C extended temperature range.

关键特性
  • Ultra-Low-Voltage Operation:
    • Guaranteed Down to +1.8V
    • Typical Operation to +1.5V
  • Ultra-Low Power Consumption:
    • 10µA Supply Current per Amplifier
    • 1µA Shutdown Mode (MAX4241/MAX4243)
    • Up to 200,000 Hours Operation from Two AA Alkaline Cells
  • Beyond-the-Rails Input Common-Mode Range
  • Outputs Swing Rail-to-Rail
  • No Phase Reversal for Overdriven Inputs
  • 200µV Input Offset Voltage
  • Unity-Gain Stable for Capacitive Loads up to 200pF
  • 90kHz Gain-Bandwidth Product
  • Available in Space-Saving 5-Pin SOT23 and 8-Pin µMAX® Packages
MAX4240、MAX4241、MAX4242、MAX4243、MAX4244:引脚配置
MAX4240、MAX4241、MAX4242、MAX4243、MAX4244:引脚配置
应用
  • 蜂窝手机
  • 蜂窝电话
  • 数码相机(DIGICAM)
  • 数字测量
  • GPS方案
  • MP3和便携式媒体播放器
  • 笔记本电脑
  • PDA
  • 便携/电池供电的电子设备
  • 传感器放大器
  • 应变仪
  • 两节电池供电系统
数据手册DataSheet
语言下载文件备注
英文MAX4240-MAX4244.pdfRev 3; 12/2006
关键参数
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
MAX42401Input/Output1.85.5141400948560.090.0470SOT/5$1.54 @1k
MAX42411750
  • µMAX/8
  • SOIC(N)/8
$1.40 @1k
MAX42422880
  • µMAX/8
  • SOIC(N)/8
$2.00 @1k
MAX42432880
  • µMAX/10
  • SOIC(N)/14
$2.13 @1k
技术资料
订购型号
型号状况推荐替代产品封装温度RoHS/无铅
MAX4240EUK+生产中SOT,;5引脚;9mm²-40°C至+85°CRoHS/无铅:无铅
MAX4240EUK+T生产中SOT,;5引脚;9mm²-40°C至+85°CRoHS/无铅:无铅
MAX4240EUK-T停止供货MAX4240EUK+TSOT,;5引脚;9mm²-40°C至+85°CRoHS/无铅:否
MAX4240-MAX4244.pdf MAX4243
Rail-to-Rail Outputs and Beyond-the-Rails Inputs: The Inside Story on Micropower Op Amps MAX492
MAX4240-MAX4244.pdf MAX4244