Datasheet

INA117
SBOS154A
11
FIGURE 12. Common-Mode Voltage Monitoring.
GAIN R
7
R
6
(V/V) (kΩ)(kΩ)
1/2 1.05 20
1/4 3.16 20
1/5 4.22 20
FIGURE 10. Reducing Differential Gain.
380kΩ
380kΩ 380kΩ
21.1kΩ 20kΩ
47
2
3
815
6
V– V+
V
3
V
2
V
X
V
O
= V
3
– V
2
+ V
X
OPA27
INA117
FIGURE 11. Summing V
X
in Output.
OPA27
V
3
V
2
2
3
6
815
100pF
A
1
INA117
V
OUT
= V
3
– V
2
V
CM
/20
OPA27
A
2
100pF
R
1
380kΩ
R
3
380kΩ
R
2
380kΩ
R
4
20kΩ
R
5
21.1kΩ
R
6
5kΩ
R
7
10kΩ
R
8
10kΩ
R
10
10kΩ
R
9
400kΩ
Refer to Application Bulletin AB-010 for details.
(b)
OPA27
V
2
V
3
2
3
6
815
100pF
A
1
INA117
V
OUT
= V
3
– V
2
–V
3
/20
R
3
380kΩ
R
1
380kΩ
R
2
380kΩ
R
5
21.1kΩ
R
4
20kΩ
R
6
5kΩ
R
7
10kΩ
(a)
380kΩ
380kΩ
380kΩ
21.1kΩ
20kΩ
2
3
815
6
V
3
V
2
INA117
OPA27
R
7
R
6
19 R
7
V
3
– V
2
R
6
V
O
=
1 +
Refer to Application
Bulletin AB-001 for
details.