ES51960
3 3/4 Auto DMM
APPLICATION CIRCUIT
7.5V ZI
5.6V ZI
3V
0.1u
+
10u
0.1u
-3V
0.1u
+
10u
4M HZ
M
A
X
/
M
I
N
B
K
O
U
T
S
D
O
R K
E E
L Y
F
C
5
V
-
L F F F F
B C C C C
A 1 2 3 4
T
9
R H
A O
N L
G D
E
A A D V
G G G -
N N N
C C
- +
OSC2
V+
V+
CH+
CH-
CIH
OSC1
PH4
PH3
PH2
PH1
D D D
0.01u
0.022u
200K
0.047u
BUFH
CAZH
CL+
CL-
CIL
CAZL
BUFL
uA
m A
-3V
450
0.1u
BUZOUT
BUZIN
0.22u
0.47u
200K
uA
uA
BP1
BP2
45
m A
m A
10A
4.5
100K
IV SL
IV SH
10A
L
C
D
0.495
0.005
100K
AGND
100K
100
OVX
0.1u
1.5K
D
I
S
P
L
A
Y
OVH
R
PTC
OVSG
100
1K
Z1
6V
OR1
VR5
VR4
VR3
VR2
10K
101K
1.11M
ADO
D2
0.47u
0.22u
66M
88M
D1
2.2u 2.2u
1u
ADI
ACVH
ACVL
TEST5
1u
0.1u
2125K
A
S S
E E
S G G
B S
K L
22K
15K
S
G
N
D
O
D
C
A
F
R
E
Q
V
R
V C
R V
H R
10K
L
E
VA+
VA-
ADP
V
R
2 2
4 3
E
T
I E
D 1
T
P
5K
100K
ADP
200
10M
10k
4.7n
91k
2.2u
1.5K
PTC
C1815
NPN
-3 V
+
1u
-3 V
Note: In order to prevent IC from damaging by inappropriate operation, the Zener diodes
MUST be required as protection.
18
92年8月4日
CYRUSTEK [ Cyrustek corporation ]
