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LTC6102CDD-PBF

产品描述Precision Zero Drift Current Sense Amplifi er
文件大小246KB,共20页
制造商Linear ( ADI )
官网地址http://www.analog.com/cn/index.html
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LTC6102CDD-PBF概述

Precision Zero Drift Current Sense Amplifi er

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LTC6102/LTC6102HV
Precision Zero Drift
Current Sense Amplifier
FEATURES
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DESCRIPTION
The LTC
®
6102/LTC6102HV are versatile, high voltage,
high-side current sense amplifiers. Their high supply
voltage rating allows their use in almost any application,
while the low drift and offset ensure accuracy across a
wide range of operating conditions.
The LTC6102/LTC6102HV monitor current via the voltage
across an external sense resistor (shunt resistor). Internal
circuitry converts input voltage to output current, allowing
a small sense signal on a large common mode voltage to
be translated to a ground-referred signal. Low DC offset
allows the use of very low shunt resistor values and large
gain-setting resistors. As a result, power loss in the shunt
is reduced.
The wide operating supply and high accuracy make the
LTC6102/LTC6102HV ideal for a large array of applications
from automotive to industrial and power management. A
maximum input sense voltage of 2V allows a wide range
of currents and voltages to be monitored. Fast response
makes the LTC6102/LTC6102HV the perfect choice for load
current warnings and shutoff protection control.
The LTC6102/LTC6102HV are available in 8-lead MSOP
and 3mm × 3mm DFN packages.
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Supply Range:
4V to 60V, 70V Absolute Maximum (LTC6102)
5V to 100V, 105V Absolute Maximum (LTC6102HV)
±10μV Input Offset Maximum
±50nV/°C Input Offset Drift Maximum
Fast Response: 1μs Step Response
Gain Configurable with Two Resistors
Low Input Bias Current: 3nA Maximum
PSRR 130dB Minimum
Output Currents up to 1mA
Operating Temperature Range: –40°C to 125°C
Available in 8-Lead MSOP and 3mm × 3mm
DFN Packages
APPLICATIONS
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Current Shunt Measurement
Battery Monitoring
Remote Sensing
Power Management
Load Protection
Motor Control
Automotive Controls
L,
LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
TYPICAL APPLICATION
10A Current Sense with 10mA Resolution and 100mW
Maximum Dissipation
I
LOAD
Dynamic Range vs Maximum Power
Dissipation in R
SENSE
at 10A
110
100
90
DYNAMIC RANGE (dB)
80
70 R
SENSE
= 10μΩ
Max V
SENSE
= 100μV
60
50
40
30
DYNAMIC RANGE RELATIVE
TO 10μV MINIMUM V
SENSE
I
SENSE
= 10A
R
SENSE
= 100mΩ
Max V
SENSE
= 1V
+IN
V
SENSE
+
R
IN
20Ω
–INS
5V TO 105V
1mΩ*
L
O
A
D
V
+ –
–INF
V
+
V
REG
V
OUT
0.1μF
5V
1μF
LTC6102HV
OUT
R
OUT
4.99k
LTC2433-1
TO
μP
20
0.001
6102 TA01
0.01
0.1
1
MAXIMUM POWER DISSIPATION (W)
10
6102 TA01b
V
OUT
=
R
OUT
• V
SENSE
= 249.5V
SENSE
R
IN
*PROPER SHUNT SELECTION COULD ALLOW
MONITORING OF CURRENTS IN EXCESS OF 1000A
6102fb
1

LTC6102CDD-PBF相似产品对比

LTC6102CDD-PBF LTC6102 LTC6102HV LTC6102IDD-PBF
描述 Precision Zero Drift Current Sense Amplifi er Precision Zero Drift Current Sense Amplifi er Precision Zero Drift Current Sense Amplifi er Precision Zero Drift Current Sense Amplifi er

 
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