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ManualsBrandsLINEAR TECHNOLOGY ManualsLinear ICsLinear IC - Op-amp Programmable gain MSOP 10
11121314151617181920
LT1991
19
1991fh
Figure 11. Many Difference Gains Are Achievable Just by Strapping the Pins
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–
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+
1991 F11
M9
M3
M1
P1
P3
P9
OUT
V
CC
V
OUT
V
EE
V
S
–
V
S
+
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S
–
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+
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–
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+
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+
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–
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+
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+
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+
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+
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+
REF
LT1991
8
9
10
1
2
3
7
6
5
4
M9
M3
M1
P1
P3
P9
OUT
V
CC
V
OUT
V
EE
REF
LT1991
8
9
10
1
2
3
7
6
5
4
M9
M3
M1
P1
P3
P9
OUT
V
CC
V
OUT
V
EE
REF
LT1991
8
9
10
1
2
3
7
6
5
4
M9
M3
M1
P1
P3
P9
OUT
V
CC
V
OUT
V
EE
REF
LT1991
8
9
10
1
2
3
7
6
5
4
M9
M3
M1
P1
P3
P9
OUT
V
CC
V
OUT
V
EE
REF
LT1991
8
9
10
1
2
3
7
6
5
4
M9
M3
M1
P1
P3
P9
OUT
V
CC
V
OUT
V
EE
REF
LT1991
8
9
10
1
2
3
7
6
5
4
M9
M3
M1
P1
P3
P9
OUT
V
CC
V
OUT
V
EE
REF
LT1991
8
9
10
1
2
3
7
6
5
4
M9
M3
M1
P1
P3
P9
OUT
V
CC
V
OUT
V
EE
REF
LT1991
8
9
10
1
2
3
7
6
5
4
M9
M3
M1
P1
P3
P9
OUT
V
CC
V
OUT
V
EE
REF
LT1991
8
9
10
1
2
3
7
6
5
4
M9
M3
M1
P1
P3
P9
OUT
V
CC
V
OUT
V
EE
REF
LT1991
8
9
10
1
2
3
7
6
5
4
M9
M3
M1
P1
P3
P9
OUT
V
CC
V
OUT
V
EE
REF
LT1991
8
9
10
1
2
3
7
6
5
4
GAIN = 0.25
GAIN = 1 GAIN = 2.25
GAIN = 3 GAIN = 4 GAIN = 4.5
GAIN = 6 GAIN = 9
GAIN = 12 GAIN = 13
GAIN = 10
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–
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+
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+
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+
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+
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–
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+
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–
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+
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+
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–
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+
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+
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+
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–
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