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Philips Semiconductors
Using the NE/SA5234 amplifier
R
10k
V CC
R
S
CC
R1
C1
Figure 15. Non-Inverting Biasing
|V
– V
|
V
2
1
O
5.9mV
0.5V
25.6mV
2.50V
46.6mV
4.63V
S.G.: Matched Strain Gauge elements
1991 Oct
R
V
CC
2
4
+
–
11
R
F
SL00643
V2
4.3k
S.G.
S.G.
+5.0V
4.3k
Figure 17. Strain Gauge Amplifier
4.3k
4.3k
S.G.
S.G.
4.3k
4.3k
Figure 18. Remote Strain Gauge
+
–
+
4V
VR
–
Figure 19. Solar Regulator
–
T
A1
R
+
A
N
S
Figure 16. A 4-20mA Current Loop
12k
1.2M
4.3k
4
2
+
1
–
3
4.3k
1k
11
12k
1.2M
1.2M
4
2
+
12k
–
1
3
11
Two-wire, Twisted-pair
Shielded Line
12k
1.2M
4-6V DC
+
–
10
Application note
AN1651
RECEIVE UNIT
NE/SA5234
+
A2
–
4700
R
= 250
SH
+5.0V
V
O
+V
CC
SIGNAL
COM
+3V
CMOS
SL00644
SL00645
SL00646
SL00647
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