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參數(shù)資料
| 型號(hào)： | LTCMN |
| 廠商： | Linear Technology Corporation |
| 元件分類： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | Dual High Voltage, High Side Current Sense Amplifier |
| 中文描述： | 雙高電壓，高側(cè)電流檢測(cè)放大器 |
| 文件頁(yè)數(shù)： | 1/16頁(yè) |
| 文件大?。?/td> | 267K |
| 代理商： | LTCMN |
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LTC6103
1
6103f
TYPICAL APPLICATION
Two 16-Bit Current Sense Channels Connected Directly to the LTC2436-1 ADC
FEATURES
APPLICATIONS
DESCRIPTION
Dual High Voltage, High Side
Current Sense Amplifier
The LTC
6103 is a versatile, high voltage, high side, dual
current sense amplifier. The two internal amplifiers are
independent except that they share the same V
–
terminal.
Design flexibility is provided by the excellent device char-
acteristics: 450μV maximum offset, and only 275μA of
current consumption (typical at 12V) for each amplifier.
The LTC6103 operates on supplies from 4V to 60V.
The LTC6103 monitors current via the voltage across an
external sense resistor (shunt resistor). Internal circuitry
converts input voltage to output current, allowing for a
small sense signal on a high common mode voltage to be
translated into a ground referenced signal. Low DC offset al-
lows the use of a small shunt resistor and large gain-setting
resistors. As a result, power loss in the shunt is minimal.
The wide operating supply range and high accuracy make
the LTC6103 ideal for an extensive variety of applications
from automotive to industrial and power management.
The fast response makes the LTC6103 the perfect choice
for load current warnings and shutoff protection control.
With very low supply current, the LTC6103 is suitable for
power sensitive applications.
The LTC6103 is available in an 8-lead MSOP package.
■
Two Independent Current Sense Amplifiers
■
Wide Supply Range: 4V to 60V, 70V Absolute
Maximum
■
Low Offset Voltage: 450μV Maximum
■
Fast Response: 1μs Response Time
■
Gain Configurable with External Resistors
■
Low Input Bias Current: 170nA Maximum
■
PSRR: 110dB Minimum (6V to 60V)
■
Output Current: 1mA Maximum
■
Low Supply Current: 275μA per Amplifier, V
S
= 12V
■
Specified for –40°C to 125°C Temperature Range
■
Available in an 8-lead MSOP Package
■
Current Shunt Measurement
■
Battery Monitoring
■
Remote Sensing
■
Power Management
■
High Voltage Level Translator
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
5.5V
5V
0.5V
0V
500ns/DIV
6103 TA01b
T
A
= 25
°
C
V
+
= 12V
R
IN
= 100
R
OUT
= 5k
V
SENSE
= V
+
V
OUT
V
SENSE
–
V
SENSE
–
= 100mV
I
OUT
= 100
μ
A
I
OUT
= 0
μ
A
Step Response
+
–
+
–
8
7
6
5
2
4
1
+INA
OUTA
OUTB
V
SB
V
SA
LTC6103
6
2
13
12
11
1
1
μ
F
5V
5
7
4
TO
μ
P
6103 TA01a
–INA
–INB
R
IN
100
R
IN
100
V
SENSE
–
V
SENSE
+
+
–
V
A+
V
B+
+INB
V
–
R
4.99k
R
4.99k
LOAD
LOAD
I
LOAD
I
LOAD
LTC2436-1
CH1
CH0
3,8,9,10,14,15,16
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