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INA148 Datasheet(PDF) 11 Page - Texas Instruments

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Part # INA148
Description  200V Common-Mode Voltage DIFFERENCE AMPLIFIER
PDF  16 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

INA148 Datasheet(HTML) 11 Page - Texas Instruments

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11
®
INA148
FIGURE 6. Quasi-AC-Coupled Differential Amplifier.
FIGURE 7. Single-Supply Differential Amplifier.
FIGURE 8. Battery Monitor Circuit.
1M
Ω
50k
Ω
52.6316k
Ω
50k
Ω
2.7778k
Ω
1M
Ω
–V
S
V
IN
4
3
2
6
A1
INA148
V
O
+
V
IN
–
0.22
µF
1
V
REF
+V
S
–V
S
+V
S
7
U2:
OPA132 for V
S = ±5V to ±15V
OPA340 for V
S = ±2.5
1M
Ω
U1
f
C ≅ 0.75 Hz HPF
2
3
U2
4
7
6
V
O = (VIN – VIN) + VREF
–
+
1M
Ω
50k
Ω
52.6316k
Ω
50k
Ω
2.7778k
Ω
1M
Ω
V
IN
3
2
6
41
A1
INA148
V
O
+5V
+
V
IN
–
7
0.1
µF
+5V
V
CM = –23V to +56V
V
O = (VIN – VIN) + 1.235V
REF1004-1.2
10
µF
5
Ω
34k
Ω
+–
+
1M
Ω
50k
Ω
52.6316k
Ω
50k
Ω
2.7778k
Ω
1M
Ω
3
2
6
1
A1
INA148
REF1004-1.2
10
µF
5
Ω
7
0.1
µF
4
0.01
Ω
+
+
–
28V
Supply
I
C
271k
Ω
V
O = 1.235V + (IC • RS)
R
S



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