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STANDARDMILITARYDRAWING

更新时间: 2024-10-27 22:05:47
品牌 Logo 应用领域
亚德诺 - ADI 运算放大器
页数 文件大小 规格书
16页 322K
描述
Single Supply, Rail-to-Rail Low Power FET-Input Op Amp

STANDARDMILITARYDRAWING 数据手册

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Single Supply, Rail-to-Rail  
Low Power FET-Input Op Amp  
a
AD822  
CO NNECTIO N D IAGRAM  
FEATURES  
TRUE SINGLE SUPPLY OPERATION  
Output Sw ings Rail to Rail  
8-P in P lastic D IP , Cerdip and SO IC  
Input Voltage Range Extends Below Ground  
Single Supply Capability from +3 V to +36 V  
Dual Supply Capability from ؎1.5 V to ؎18 V  
HIGH LOAD DRIVE  
Capacitive Load Drive of 350 pF, G = 1  
Minim um Output Current of 15 m A  
EXCELLENT AC PERFORMANCE FOR LOW POWER  
800 A Max Quiescent Current per Am plifier  
Unity Gain Bandw idth: 1.8 MHz  
Slew Rate of 3.0 V/ s  
OUT1  
–IN1  
+IN1  
V–  
1
2
3
4
8
7
6
5
V+  
OUT2  
–IN2  
+IN2  
AD822  
capability with an input voltage range extending below the  
negative rail, allowing the AD822 to accommodate input signals  
below ground in the single supply mode. Output voltage swing  
extends to within 10 mV of each rail providing the maximum  
output dynamic range.  
GOOD DC PERFORMANCE  
800 V Max Input Offset Voltage  
2 V/ ؇C Typ Offset Voltage Drift  
25 pA Max Input Bias Current  
LOW NOISE  
13 nV/ Hz @ 10 kHz  
NO PHASE INVERSION  
Offset voltage of 800 µV max, offset voltage drift of 2 µV/°C,  
input bias currents below 25 pA and low input voltage noise  
provide dc precision with source impedances up to a Gigaohm.  
1.8 MHz unity gain bandwidth, –93 dB T HD at 10 kHz and  
3 V/µs slew rate are provided with a low supply current of  
800 µA per amplifier. T he AD822 drives up to 350 pF of direct  
capacitive load as a follower, and provides a minimum output  
current of 15 mA. T his allows the amplifier to handle a wide  
range of load conditions. T his combination of ac and dc  
performance, plus the outstanding load drive capability, results  
in an exceptionally versatile amplifier for the single supply user.  
APPLICATIONS  
Battery Pow ered Precision Instrum entation  
Photodiode Pream ps  
Active Filters  
12- to 14-Bit Data Acquisition System s  
Medical Instrum entation  
Low Pow er References and Regulators  
T he AD822 is available in four performance grades. T he A and  
B grades are rated over the industrial temperature range of  
–40°C to +85°C. T here is also a 3 volt grade—the AD822A-3V,  
rated over the industrial temperature range. T he mil grade is  
rated over the military temperature range of –55°C to +125°C  
and is available processed on standard military drawing.  
P RO D UCT D ESCRIP TIO N  
T he AD822 is a dual precision, low power FET input op  
amp that can operate from a single supply of +3.0 V to 36 V,  
or dual supplies of ±1.5 V to ±18 V. It has true single supply  
100  
10  
1
T he AD822 is offered in three varieties of 8-pin package: plastic  
DIP, hermetic cerdip and surface mount (SOIC) as well as die  
form.  
1V  
1V  
20µ  
s
100  
90  
5V  
V
OUT  
10  
0%  
0V  
(GND)  
1V  
10  
100  
FREQUENCY – Hz  
1k  
10k  
Input Voltage Noise vs. Frequency  
Gain of +2 Am plifier; VS = +5, 0, VIN = 2.5 V Sine Centered  
at 1.25 Volts, RL = 100 kΩ  
REV. A  
Inform ation furnished by Analog Devices is believed to be accurate and  
reliable. However, no responsibility is assum ed by Analog Devices for its  
use, nor for any infringem ents of patents or other rights of third parties  
which m ay result from its use. No license is granted by im plication or  
otherwise under any patent or patent rights of Analog Devices.  
One Technology Way, P.O. Box 9106, Norw ood, MA 02062-9106, U.S.A.  
Tel: 617/ 329-4700  
Fax: 617/ 326-8703  

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