Datasheet

REF102
8
SBVS022B
www.ti.com
FIGURE 7. +10V Reference With Output Current Boosted to: a) ±20mA, b) +100mA, and c) I
L (TYP)
+10mA, –5A.
Ω
–
+
OPA227
6
220
+10V
I
L
6
+10V
I
L
2N2905
6
+10V
I
L
4
REF102
V+
a) −20mA < I
L
< +20mA
(OPA227 also improves transient immunity)
b) −5mA < I
L
< +100mA c) I
L (MAX)
= I
L (TYP)
+10mA
I
L (MIN)
= I
L (TYP)
−5mA
V
CC
− 10V
I
L (TYP)
R
1
=
2
4
REF102
V+
2
4
REF102
V+
2
–
+
INA126
V
x100
2
4
6
+15V
− 5V
–15V
357
1/2W
Ω
2
3
OPA227
–
+
357
1/2W
Ω
28mA
28.5mA
+5V
350 Strain
Gauge Bridge
Ω
5
10
8
R
G
OUT
6
REF102
V+
REF102
6
4
2
3
See SBVA007 for more details.
1
25kΩ
25kΩ25kΩ
25kΩ
INA105
5
6
+10V
Out
−10V
Out
2
–
+
LOAD
I
OUT
Can be connected
to ground or −V .
S
V+
REF102
2
6
4
OPA277
R
I
OUT
= , R ≥ 1kΩ
See SBVA001 for more details and I
SINK
Circuit.
10V
R
FIGURE 8. Strain Gauge Conditioner for 350Ω Bridge.
FIGURE 9. ±10V Reference. FIGURE 10. Positive Precision Current Source.