Datasheet

ISO124
11
SBOS074C
www.ti.com
FIGURE 10. Single-Supply Operation of the ISO124 Isolation Amplifier. For additional information refer to Application Note
SBOA004.
FIGURE 9. Improved PSR Using External Regulator.
NOTE: The input supplies can be subregulated to ±5V to reduce
PSR related errors without reducing the ±10V input range.
10
7
9
8
2
V
OUT
+15V
–15V
V
IN
, up to
±10V Swing
+5V
Regulator
MC78L05
–5V
Regulator
MC79L05
0.47µF 0.47µF
0.1µF
1
2
3
0.1µF
0.47µF
ISO124
3
1
2
16
1
7 6 5 21
DCP011515DB
or
DCV011515D
R
1
R
2
R
4
INA105
Difference Amp
R
3
R
S
2
3
4
IN4689
5.1V
Reference
5
7
6
1
V
IN
Signal Source
+
NOTE: (1) Select to match R .
NOTE: Since the amplifier is unity gain, the input
range is also the output range. The output can go
to –2V since the output section of the ISO amp
operates from dual supplies.
S
10kΩ
15
–V
S2
(–15V)
+V
S2
(+15V)
V
S1
(+15V)
16
–V
S1
Com 2
10
In
Gnd
R
C
(1)
V
S
(V)
20+
15
12
INPUT RANGE
(V)
(1)
–2 to +10
–2 to +5
–2 to +2
7
9
8
ISO124
2
1
V
OUT
= V
IN