參數(shù)資料
型號(hào)： INA117SM
元件分類： 差分放大器
英文描述： High Common-Mode Voltage DIFFERENCE AMPLIFIER
中文描述： 高共模電壓差分放大器
文件頁(yè)數(shù)： 7/14頁(yè)
文件大?。?/td> 192K
代理商： INA117SM
7
INA117
MEASURING CURRENT
The INA117 can be used to measure a current by sensing the
voltage drop across a series resistor, R
S
. Figure 4 shows the
INA117 used to measure the supply currents of a device
under test. The circuit in Figure 5 measures the output
current of a power supply. If the power supply has a sense
connection, it can be connected to the output side of R
S
to
eliminate the voltage-drop error. Another common applica-
tion is current-to-voltage conversion as shown in Figure 6.
FIGURE 4. Measuring Supply Currents of Device Under
Test.
380k
380k
380k
21.1k
20k
4
7
2
3
8
1
5
V–
V+
V
2
V
3
V
O
= V
3
– V
2
6
200
10
10
If offset adjust is also required,
connect to offset circuit, Figure 2.
CMR
Adjust
FIGURE 3. CMR Trim Circuit.
FIGURE 5. Measuring Power Supply Output Current.
380k
20k
380k
380k
380k
380k
380k
21.1k
4
7
2
3
8
1
5
6
R
S
R
C
*
C
I
DUT+
I
DUT–
21.1k
20k
4
7
2
3
8
1
5
V–
V+
6
R
S
V–
V+
Device
Under
Test
–V
S
+V
S
*Not needed if R is less than 20 —see text.
(+200V max)
(–200V max)
V
O
= R
S
I
DUT+
V
O
= R
S
I
DUT–
R
C
*
380k
380k
380k
20k
21.1k
4
7
2
3
8
1
5
6
R
S
R
C
*
I
L
V–
V+
±200V max
Load
Power Supply
Out
Sense
*R
C
= R
S
not needed if R
S
is less than 20
—see text.
Optional Load
Sense Connection
(see text)
V
O
= I
L
R
S
相關(guān)PDF資料
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
INA117SM 制造商:Texas Instruments 功能描述:IC DIFF AMP 200KHZ 2.6V/
INA117SMQ 功能描述:差分放大器 High Common-Mode Voltage RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 Channel 帶寬:2.4 GHz 可用增益調(diào)整:6 dB to 26 dB 輸入補(bǔ)償電壓: 共模抑制比（最小值）:- 40 dB 工作電源電壓:4.75 V to 5.25 V 電源電流:100 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WQFN-24 封裝:Reel
INA118 制造商:BB 制造商全稱:BB 功能描述:Precision, Low Power INSTRUMENTATION AMPLIFIER
INA118P 功能描述:儀表放大器 Precision Low Power Instrumentation Amp RoHS:否 制造商:Texas Instruments 通道數(shù)量: 輸入補(bǔ)償電壓:150 V 可用增益調(diào)整: 最大輸入電阻:10 kOhms 共模抑制比（最小值）:88 dB 工作電源電壓:2.7 V to 36 V 電源電流:200 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:MSOP-8 封裝:Bulk
INA118P 制造商:Texas Instruments 功能描述:IC AMP INSTRUMENTATION DIP8 118
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