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LT1019CN8-10

更新时间： 2024-11-11 22:25:47
品牌 Logo 应用领域
凌特 - Linear /
页数 文件大小 规格书
12页 161K
描述
Precision Reference

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LT1019CN8-10 数据手册

 浏览型号LT1019CN8-10的Datasheet PDF文件第2页浏览型号LT1019CN8-10的Datasheet PDF文件第3页浏览型号LT1019CN8-10的Datasheet PDF文件第4页浏览型号LT1019CN8-10的Datasheet PDF文件第5页浏览型号LT1019CN8-10的Datasheet PDF文件第6页浏览型号LT1019CN8-10的Datasheet PDF文件第7页 
LT1019  
Pre c isio n Re fe re nc e  
U
FEATURES  
DESCRIPTIO  
The LT®1019 is a third generation bandgap voltage refer-  
ence utilizing thin film technology and a greatly improved  
curvature correction technique. Wafer level trimming of  
both reference and output voltage combines to produce  
units with high yields to very low TC and tight initial  
tolerance of output voltage.  
■
Tight Initial Output Voltage: <0.05%  
Ultralow Drift: 3ppm/°C Typical  
Series or Shunt Operation  
Curvature Corrected  
Ultrahigh Line Rejection: ≈0.5ppm/V  
Low Output Impedance: ≈0.02Ω  
Plug-In Replacement for Present References  
Available at 2.5V, 4.5V, 5V, and 10V  
■
■
■
■
■
■
The LT1019 can both sink and source up to 10mA and can  
be used in either the series or shunt mode. This allows the  
reference to be used for both positive and negative output  
voltages without external components. Minimum input/  
outputvoltageis less than1Vintheseries mode,providing  
improved tolerance of low line conditions.  
■
■
100% Noise Tested  
Temperature Output  
Industrial Temperature Range in SO-8  
■
■
U
APPLICATIO S  
■
The LT1019 is available in four voltages: 2.5V, 4.5V, 5V  
and 10V. It is a direct replacement for most bandgap  
references presently available including AD580, AD581,  
REF-01, REF-02, MC1400, MC1404 and LM168.  
Negative Shunt References  
A/D and D/A Converters  
Precision Regulators  
Constant Current Sources  
V/F Converters  
Bridge Excitation  
■
■
■
■
■
, LTC and LT are registered trademarks of Linear Technology Corporation.  
U
TYPICAL APPLICATION  
Output Voltage Drift  
Ultralinear Strain Guage  
15V  
357Ω*  
0.5W  
5V  
1.003  
R3  
2M  
10ppm/°C  
FULL TEMP RANGE “BOX”  
1.002  
IN  
OUT  
350Ω  
BRIDGE  
LT1019-5  
GND  
1.001  
R2  
20k  
–
LT1019  
CURVE  
+
–
1.000  
A1†  
LT1637  
A2  
LT1001  
R4  
20k  
GAIN = 100  
+
0.999  
5ppm/°C  
0°C TO 70°C “BOX”  
ACTIVE  
ELEMENT  
R5  
2M  
0.998  
UNCOMPENSATED  
“STANDARD” BANDGAP  
DRIFT CURVE  
R6**  
2M  
0.997  
50  
TEMPERATURE (˚C)  
100 125  
–50 –25  
0
25  
75  
LT1019 • TA01  
–5V  
357Ω*  
0.5W  
*REDUCES REFERENCE AND AMPLIFIER  
LOADING TO ≈0.  
1019 TA02  
**IF R6 = R3, BRIDGE IS NOT LOADED BY R2 AND R4.  
–15V  
†A1 V AND DRIFT ARE NOT CRITICAL BECAUSE A2  
OS  
ACTS AS A DIFFERENTIAL AMPLIFIER.  
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