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LT1678

更新时间： 2024-11-22 14:57:31
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
16页 292K
描述
双通道、低噪声、轨至轨、精准型运算放大器

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中文翻译

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LT1678 数据手册

 浏览型号LT1678的Datasheet PDF文件第2页浏览型号LT1678的Datasheet PDF文件第3页浏览型号LT1678的Datasheet PDF文件第4页浏览型号LT1678的Datasheet PDF文件第5页浏览型号LT1678的Datasheet PDF文件第6页浏览型号LT1678的Datasheet PDF文件第7页 
LT1678/LT1679  
Dual/Quad Low Noise,  
Rail-to-Rail, Precision Op Amps  
U
FEATURES  
DESCRIPTIO  
The LT®1678/LT1679 are dual/quad rail-to-rail op amps  
offering both low noise and precision: 3.9nV/√Hz wideband  
noise, 1/f corner frequency of 4Hz and 90nV peak-to-peak  
0.1Hz to 10Hz noise are combined with outstanding  
precision: 100µV maximum offset voltage, greater than  
100dB common mode and power supply rejection and  
20MHz gain bandwidth product. The LT1678/LT1679 bring  
precisionaswellaslownoisetosinglesupplyapplicationsas  
low as 3V. The input range exceeds the power supply by  
100mV with no phase inversion while the output can swing  
to within 170mV of either rail.  
■
Rail-to-Rail Input and Output  
100% Tested Low Voltage Noise:  
■
3.9nV/√Hz Typ at 1kHz  
5.5nV/√Hz Max at 1kHz  
■
Single Supply Operation from 2.7V to 36V  
■
Offset Voltage: 100µV Max  
■
Low Input Bias Current: 20nA Max  
■
High AVOL: 3V/µV Min, RL = 10k  
■
High CMRR: 100dB Min  
High PSRR: 106dB Min  
■
■
Gain Bandwidth Product: 20MHz  
Operating Temperature Range: –40°C to 85°C  
Matching Specifications  
No Phase Inversion  
8-Lead SO and 14-Lead SO Packages  
■
The LT1678/LT1679 are offered in the SO-8 and SO-14  
packages. A full set of matching specifications are also  
provided, facilitating their use in matching dependent appli-  
cations such as a two op amp instrumentation amplifier  
design. The LT1678/LT1679 are specified for supply volt-  
ages of ±15V, single 5V as well as single 3V. For a single  
amplifier with similiar performance, see the LT1677 data  
sheet.  
■
■
■
U
APPLICATIO S  
■
Strain Gauge Amplifiers  
■
Portable Microphones  
■
Battery-Powered Rail-to-Rail Instrumentation  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
■
Low Noise Signal Processing  
■
Microvolt Accuracy Threshold Detection  
■
Infrared Detectors  
U
TYPICAL APPLICATIO  
Instrumentation Amplifier with Shield Driver  
3
0.1Hz to 10Hz Voltage Noise  
+
1k  
30k  
1
1/4  
V
= ±2.5V  
S
LT1679  
–
2
R
F
15V  
4
3.4k  
5
6
GUARD  
+
R
G
7
1/4  
LT1679  
100Ω  
OUTPUT  
30k  
10  
+
–
+
–
11  
8
1/4  
LT1679  
R
G
INPUT  
100Ω  
9
–15V  
–
GUARD  
GAIN = 1000  
0
2
4
6
8
10  
R
F
13  
12  
–
TIME (sec)  
3.4k  
14  
1/4  
LT1679  
16789 TA01  
16789 TA01b  
1k  
+
sn16789 16789fs  
1
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