CYRUSTEK ES269, Manual

Page: 4 / 36

Ver 1.2 4 22/02/24
ES269
6000 Counts Intelligent Auto-Function DMM IC
Pin Assignment
VR3
17
AGND
1
VEE
2
CAZ
3
CINT
4
RAZ
5
CREFN
6
CREFP
7
VRH
8
EFin
9
Ain
10
mAin
11
OHMC1
12
OHMC2
13
OR2
14
OR1
15
VR4
16
VR2
18
OVSG
19
VR1
20
OVH
21
OVX
22
CTRL
23
ACVH
24
AVCL
25
B
K
O
U
T
3
8
A
L
A
R
M
3
9
B
U
Z
O
U
T
4
0
B
P
4
4
4
S
E
G
2
4
4
5
S
E
G
2
3
4
6
S
E
G
2
2
4
7
S
E
G
2
1
4
8
M
M
X
P
3
5
R
G
P
3
4
C
A
N
3
3
S
E
G
2
0
4
9
S
E
G
1
9
5
0
SEG13
56
SEG12
57
A
D
I
2
6
A
D
O
2
7
SEG11
58
SEG10
59
SEG09
60
SEG08
61
SEG07
62
SEG06
63
SEG05
64
SEG14
55
SEG16
53
SEG15
54
S
G
N
D
2
9
R
9
K
3
0
R
1
K
3
1
C
A
P
3
2
L
E
D
O
U
T
3
7
SEG04
65
SEG03
66
SEG02
67
SEG01
68
RSOUT
69
SDAP
70
SCLP
71
OSC2
72
OSC1
73
DET_mA
74
DET_A
75
N
C
7
6
N
C
7
7
E
F
K
E
Y
P
7
8
A
G
N
D
1
0
0
H
O
L
D
P
8
1
S
E
L
K
E
Y
P
8
0
B
K
L
IT
P
7
9
N
C
8
2
D
IS
F
L
H
S
E
L
P
8
4
S
6
0
0
V
E
F
S
E
L
P
8
5
C
S
H
N
8
6
C
S
H
P
8
7
C
A
L
en
8
8
O
P
O
_
R
8
9
O
P
O
_
Y
9
0
O
P
O
_
G
9
1
P
D
R
M
S
9
2
C
N
9
3
C
P
9
4
B
A
T
9
9
5
C
L
A
M
P
A
P
O
P
8
3
V
-
9
6
V
-
9
7
S
L
E
E
P
3
6
V
+
9
8
V
+
9
9
T
E
S
T
5
2
8
B
P
1
4
1
B
P
2
4
2
B
P
3
4
3
SEG18
51
SEG17
52
ES269
Pin Description
Pin No Symbol Type Description
1 AGND P Analog ground.
2 VEE P Analog ground.
3 CAZ I Auto-zero capacitor connection.
4 CINT O Integrator output. Connect to integral capacitor
5 RAZ O Buffer output pin in high-speed mode. Connect to high-speed integral
resistor.
6 CREFN I/O Negative connection for reference capacitor.
7 CREFP I/O Positive connection for reference capacitor.
8 VRH O Output of band-gap voltage reference. Typically –1.2V
9 EFin I Electric field input
10 Ain I Current measurement input
11 mAin I Current (milli ampere) measurement input
12 OHMC1 O Filter capacitor connection for resistance mode
13 OHMC2 O Filter capacitor connection for resistance mode
14 OR2 O Reference resistor connection for 60.00MΩ range
15 OR1 O Reference resistor connection for 600.0Ω range
16 VR4 O Voltage measurement ÷1000 attenuated (600.0V/1000V)
17 VR3 O Voltage measurement ÷100 attenuated (60.00V)
18 VR2 O Voltage measurement ÷10 attenuated (6.000V)
19 OVSG O Sense low voltage for resistance measurement
20 VR1 I Measurement input.
21 OVH O Output connection for resistance/capacitor measurement