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MAX4249

更新时间： 2024-12-02 14:57:43
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亚德诺 - ADI 放大器运算放大器
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16页 1781K
描述
UCSP封装、单电源、低噪声、低失真、满摆幅运算放大器

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MAX4249 数据手册

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Evaluation Kit  
Available  
Design  
Resources  
Tools  
and Models  
Support  
Click here to ask an associate for production status of specific part numbers.  
UCSP, Single-Supply, Low-Noise,  
Low-Distortion, Rail-to-Rail Op Amps  
MAX4249–MAX4257  
General Description  
Features  
The MAX4249–MAX4257 low-noise, low-distortion opera-  
tional amplifiers offer rail-to-rail outputs and single-supply  
operation down to 2.4V. They draw 400μA of quiescent  
supply current per amplifier while featuring ultra-low  
distortion (0.0002% THD), as well as low input voltage-  
noise density (7.9nV/√Hz) and low input current-noise  
density (0.5fA/√Hz). These features make the devices an  
ideal choice for portable/battery-powered applications that  
require low distortion and/or low noise.  
● Available in Space-Saving UCSP, SOT23, and  
®
µMAX Packages  
● Low Distortion: 0.0002% THD (1kΩ load)  
● 400µA Quiescent Supply Current per Amplifier  
● Single-Supply Operation from 2.4V to 5.5V  
● Input Common-Mode Voltage Range Includes  
Ground  
● Outputs Swing Within 8mV of Rails with a 10kΩ Load  
● 3MHz GBW Product, Unity-Gain Stable  
For additional power conservation, the MAX4249/  
MAX4251/MAX4253/MAX4256 offer a low-power shut-  
down mode that reduces supply current to 0.5μA and puts  
the amplifiers’ outputs into a high-impedance state. The  
MAX4249-MAX4257’s outputs swing rail-to-rail and their  
input common-mode voltage range includes ground. The  
MAX4250–MAX4254 are unity-gain stable with a gain-  
bandwidth product of 3MHz. The MAX4249/MAX4255/  
MAX4256/MAX4257 are internally compensated for gains  
of 10V/V or greater with a gain-bandwidth product of  
22MHz. The single MAX4250/MAX4255 are available in  
space-saving 5-pin SOT23 packages. The MAX4252 is  
available in an 8-bump chip-scale package (UCSP™)  
and the MAX4253 is available in a 10-bump UCSP. The  
MAX4250AAUK comes in a 5-pin SOT23 package and  
is specified for operation over the automotive (-40°C to  
+125°C) temperature range.  
(MAX4250–MAX4254)  
• 22MHz GBW Product, Stable with A ≥ 10V/V  
V
(MAX4249/MAX4255/MAX4256/MAX4257)  
● Excellent DC Characteristics  
• V  
= 70µV  
= 1pA  
OS  
• I  
BIAS  
• Large-Signal Voltage Gain = 116dB  
● Low-Power Shutdown Mode  
• Reduces Supply Current to 0.5µA  
• Places Outputs in a High-Impedance State  
● 400pF Capacitive-Load Handling Capability  
Ordering Information  
PIN-  
PACKAGE  
TOP  
MARK  
PART  
TEMP RANGE  
MAX4249ESD+  
MAX4249EUB+  
MAX4250EUK+T  
-40°C to +85°C 14 SO  
-40°C to +85°C 10 µMAX  
-40°C to +85°C 5 SOT23  
—
—
Applications  
● Wireless Communications Devices  
● PA Control  
ACCI  
AEYJ  
MAX4250AAUK+T -40°C to +125°C 5 SOT23  
● Portable/Battery-Powered Equipment  
● Medical Instrumentation  
● ADC Buffers  
+Denotes a lead(Pb)-free/RoHS-compliant package.  
T = Tape and reel.  
Ordering Information continued at end of data sheet.  
Selector Guide appears at end of data sheet.  
● Digital Scales/Strain Gauges  
Pin/Bump Configurations  
ꢁOP ꢂꢃꢄꢅ  
(BUMPS ON BOTTOM)  
1
2
3
A4  
A2  
A3  
A1  
V
INB-  
INB+  
SHDNB  
OUTB  
OUTA  
DD  
OUTB  
A
B
C
B4  
B1  
V
INA-  
V
MAX425ꢀ  
SS  
INB-  
DD  
MAX4252  
C4  
C2  
C3  
C1  
INA+  
V
SS  
INB+  
INA-  
INA+  
OUTA  
SHDNA  
Pin/Bump Configurations continued at end of data sheet. UCSP  
UCSP  
UCSP is a trademark and μMAX is a registered trademark of Maxim Integrated Products, Inc.  
19-1295; Rev 10; 4/20  
©
2021 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners.  
One Analog Way, Wilmington, MA 01887 U.S.A. Tel: 781.329.4700 © 2021 Analog Devices, Inc. All rights reserved.  
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