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LT1809

更新时间： 2024-11-22 14:58:03
品牌 Logo 应用领域
亚德诺 - ADI 放大器运算放大器
页数 文件大小 规格书
24页 294K
描述
单通道、180MHz、350V/μs 轨至轨输入和输出低失真运算放大器

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中文翻译

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LT1809 数据手册

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LT1809/LT1810  
Single/Dual 180MHz, 350V/µs  
Rail-to-Rail Input and Output  
Low Distortion Op Amps  
DESCRIPTION  
FEATURES  
TheLT®1809/LT1810aresingle/duallowdistortionrail-to-  
rail input and output op amps with a 350V/μs slew rate.  
These amplifiers have a –3dB bandwidth of 320MHz at  
n
–3dB Bandwidth: 320MHz, A = 1  
V
n
Gain-Bandwidth Product: 180MHz, A ≥ 10  
V
n
Slew Rate: 350V/μs  
n
Wide Supply Range: 2.5V to 12.6V  
unity-gain,again-bandwidthproductof180MHz(A ≥10)  
V
n
Large Output Current: 85mA  
andan85mAoutputcurrenttofittheneedsoflowvoltage,  
n
Low Distortion, 5MHz: –90dBc  
high performance signal conditioning systems.  
n
Input Common Mode Range Includes Both Rails  
The LT1809/LT1810 have an input range that includes  
both supply rails and an output that swings within 20mV  
of either supply rail to maximize the signal dynamic range  
in low supply applications.  
n
Output Swings Rail-to-Rail  
n
Input Offset Voltage, Rail-to-Rail: 2.5mV Max  
n
Common Mode Rejection: 89dB Typ  
n
Power Supply Rejection: 87dB Typ  
n
The LT1809/LT1810 have very low distortion (–90dBc) up  
to 5MHz that allows them to be used in high performance  
data acquisition systems.  
Open-Loop Gain: 100V/mV Typ  
n
Shutdown Pin: LT1809  
n
Single in 8-Pin SO and 6-Pin SOT-23 Packages  
n
Dual in 8-Pin SO and MSOP Packages  
TheLT1809/LT1810maintaintheirperformanceforsupplies  
from 2.5V to 12.6V and are specified at 3V, 5V and 5V  
supplies. The inputs can be driven beyond the supplies  
without damage or phase reversal of the output.  
n
Operating Temperature Range: –40°C to 85°C  
n
Low Profile (1mm) SOT-23 (ThinSOT™) Package  
APPLICATIONS  
The LT1809 is available in the 8-pin SO package with the  
standard op amp pinout and the 6-pin SOT-23 package.  
The LT1810 features the standard dual op amp pinout and  
isavailablein8-pinSOandMSOPpackages.Thesedevices  
can be used as a plug-in replacement for many op amps  
to improve input/output range and performance.  
n
Driving A/D Converters  
n
Low Voltage Signal Processing  
n
Active Filters  
n
Rail-to-Rail Buffer Amplifiers  
n
Video Line Driver  
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear  
Technology Corporation. ThinSOT is a trademark of Linear Technology Corporation. All other  
trademarks are the property of their respective owners.  
TYPICAL APPLICATION  
Distortion vs Frequency  
–40  
A
V
V
= +1  
= 2V  
High Speed ADC Driver  
V
IN  
S
P-P  
–50  
–60  
5V  
=
5V  
5V  
V
P-P  
IN  
R3  
49.9Ω  
+
–
LTC®1420  
PGA GAIN = 1  
REF = 2.048V  
1V  
–70  
12 BITS  
10Msps  
R
L
= 100Ω, 2ND  
•
•
•
LT1809  
–5V  
+A  
IN  
C1  
470pF  
–80  
–A  
IN  
R2  
1k  
–90  
1809 TA01a  
R
L
= 100Ω, 3RD  
R
= 1k, 3RD  
L
–5V  
–100  
R1  
1k  
R
L
= 1k, 2ND  
–110  
0.3  
1
10  
30  
FREQUENCY (MHz)  
1809 TA01b  
180910fa  
1
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