Datasheet

INA110
12
SBOS147A
www.ti.com
FIGURE 14. Input-Protected Instrumentation Amplifier. FIGURE 15. High Common-Mode Voltage Differential
Amplifier.
FIGURE 17. Differential Input FET Buffered Current
Source.
FIGURE 18. Differential Input/Differential Output
Amplifier.
6
10
8
9
V
OUT
7
+15V
15V
1
13
12
16
11
3
2
X10
X100
X200
X500
R
G
6
10
8
9
V
IN
7
1
13
12
16
11
3
2
X10
X100
X200
X500
R
G
+
INA110
INA110
3
16
1
2
6
10
INA110
9
V
OUT
R
2
15V
7
8
+15V
X200
R
1
V
2
D
3
D
4
D
1
D
2
15V
+15V
+15V
15V
V
1
V
IN
For lower voltage, lower resistor noise:
R
1
= R
2
= 20k, D
1
D
4
= FDH300 (1nA leakage)
For higher voltage, higher resistor noise:
R
1
= R
2
= 100k, D
1
D
4
= 2N4117A (1pA leakage)
Matching of RCs on inputs will affect CMR, but
can be optimized by trimming R
1
or R
2
.
FIGURE 16. Digitally-Controlled Fast-Settling Programmable Gain Instrumentation Amplifier.
CODE GAIN TYPICAL 0.01% SETTLING TIME
00 10 6µs
01 100 6µs
10 1000 12µs
3
13
1
2
6
10
INA110
9
V
OUT
15V
7
8
+15V
X10
V
IN
8
6
2
15
PGA102
X
10
1
16
+15V
7
15V
13
4
3
X
100
PGA Gain
Select
R
G
X100
3
12
1
2
6
10
INA110
9
V
OUT
10k
15V
10k
7
8
+15V
990k
990k
V
IN
V
2
V
1
Common-mode range = ±1000V.
CMR is dependent on ratio matching
of external input resistors.
Overall G = 1
1
13
12
16
11
3
2
6
10
9
I
OUT
V
IN
X10
X100
X200
X500
R
R
G
15V
7
8
+15V
1k
+15V
2N2222A
R
R
L
I
OUT
= (V
IN
) (G) (1/10k + 1/R)
For 0mA to 20mA output, R = 50.25 with (V
IN
) (G) = 1V
INA110