Datasheet

15
®
INA133, INA2133
5
6
1
3
INA133
2
4
2
+15V
6
–10V Out
+10V Out
REF102
5
7
6
3
V
3
INA133
2
4
V
2
1
4
2
+15V
OPA227
REF102
6
10V
I
O
= 4 to 20mA
0V to 10V
In
12.5kΩ 1kΩ
50kΩ
R
LOAD
V+
Set R
1
= R
2
R
2
50.1Ω
R
1
50.1Ω
2N3904
25kΩ25kΩ
25kΩ25kΩ
For 4-20mA applications,
the REF102 sets the 4mA
low-scale output for 0V input.
I
O
= V
3
– V
2
+
1
25kΩ
1
R
2
FIGURE 25. Precision Voltage-to-Current Conversion.
FIGURE 23. ±10V Precision Voltage Reference. FIGURE 24. High Output Current Precision Difference
Amplifier.
5
6
1
INA133
BUF634
2
3
V
O
R
L
–In
+In
BUF634 inside feedback
loop contributes no error.