ES51982
3 1/2 CAP AUTO DMM
7.Application circuit
3V
7.5V
5.6V ZI
10u
+
0.1u
4.7u
0.1u
-3V
+
0.1 u
uA
450
uA
uA
mA
NC
45
4.5
mA
mA
0.1u
A
0.45
0.22u
0.1u
4MHz
2A
0.045
0.005
20A
100K
SGND
100K
-3V
100K
100
110pF
100K
1.5K
PTC
100
1K
10K
101K
Zener 6V
10K
15K
1u
15K
D1
1u
D2 0.47u
91K
1u
+
20K
470n
1u
1815
1.5K
PTC
-3V
C
Note: In order to prevent IC from damaging by inappropriate operation, the Zener
diodes MUST be required as protection.
20
11/01/05