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LT6658BIMSE-2.5 PDF预览

LT6658BIMSE-2.5

更新时间： 2022-02-26 12:07:59
品牌 Logo 应用领域
Linear Systems /
页数 文件大小 规格书
30页 2599K
描述
Precision Dual Output,High Current, Low Noise, Voltage Reference

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LT6658BIMSE-2.5 数据手册

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LT6658  
Precision Dual Output,  
High Current, Low Noise,  
Voltage Reference  
DescripTion  
FeaTures  
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Dual Output Tracking Reference  
The LT®6658 precision 2.5V dual output reference com-  
bines the performance of a low drift low noise reference  
and a linear regulator. Both outputs are ideal for driving  
theprecisionreferenceinputsofhighresolutionADCsand  
DACs,evenwithheavyloadingwhilesimultaneouslyacting  
as output supplies powering microcontrollers and other  
supportingdevices. Bothoutputshavethesameprecision  
specifications and track each other over temperature and  
load. Both outputs are nominally 2.5V, however each can  
be configured with external resistors to give an output  
voltage up to 6V.  
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Each Output Configurable: 2.5V to 6V  
Output 1: 150mA Source/20mA Sink  
Output 2: 50mA Source/20mA Sink  
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Low Drift:  
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A-Grade: 10ppm/°C Max  
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B-Grade: 20ppm/°C Max  
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High Accuracy:  
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A-Grade: 0.05ꢀ Max  
B-Grade: 0.1ꢀ Max  
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Low Noise: 1.5ppm (0.1Hz to 10Hz)  
P-P  
Wide Operating Voltage Range to 36V  
Load Regulation: 0.1ppm/mA  
AC PSRR: 96dB at 10kHz  
Kelvin Sense Connection on Outputs  
Thermal Shutdown  
Separate Supply Pins for Each Output  
Available in Exposed Pad Package MSE16  
Using Kelvin connections, the LT6658 typically has  
0.1ppm/mAloadregulationwithupto150mAloadcurrent.  
A noise reduction pin is available to band-limit and lower  
the total integrated noise.  
Dual outputs provide flexibility for powering reference  
and regulator applications and localizing PCB routing. The  
outputshaveexcellentsupplyrejectionandarestablewith  
1µF to 50µF capacitors.  
applicaTions  
Shortcircuitandthermalprotectionhelpmaintainstability  
and prevent thermal overstress. The LT6658 is offered in  
the MSE16 exposed pad package.  
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and  
ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the property  
of their respective owners.  
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Microcontroller with ADC/DAC Applications  
Data Acquisition Systems  
Automotive Control and Monitoring  
Precision Low Noise Regulators  
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Instrumentation and Process Control  
Typical applicaTion  
Output Voltage Temperature Drift Both Outputs  
2.502  
Precision Dual Output 2.5V Reference and Supply  
V
OUT2  
2.501  
2.500  
2.499  
V
V
V
V
2.5V  
IN1  
IN2  
IN  
OUT2_F  
50mA  
V
OUT2_S  
1µF  
V
IN  
R
R
LOAD2  
LOAD1  
5V TO 36V  
LT6658-2.5  
OD  
V
OUT1  
0.1µF  
2.5V  
V
V
OUT1_F  
I
= 150mA  
LOAD1  
150mA  
V
V
BYPASS  
OUT1  
OUT2  
OUT1_S  
1µF  
1µF  
GND  
2.498  
–50 –25  
0
25 50 75 100 125 150  
6658 TA01a  
TEMPERATURE (°C)  
6658 TA01b  
6658f  
1
For more information www.linear.com/LT6658  
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