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Title
Num ber RevisionSize
A
Date: 5/6/2011 Sheet of
Fi le: N:\PCBM GR \ ..\06731-3_ ADC.Sch Doc Drawn By:
Auxiliary I/O Board (ADC)
B
33
RT
06731
1
2
3
4
5
6
7
8
9
P1
ANALOG INPUT
+5V-ISO
CH0
15
CH1
16
CH2
17
CH3
18
CH4
19
CH5
20
CH6
21
CH7
23
NC
4
NC
7
SHTDN
13
VDD
2
VDD
1
SDA
9
SCL
5
A2
10
A1
12
A0
6
REF
27
NC
8
AGND
14
REF-AJ
26
DGND
3
NC
22
NC
24
NC
28
NC
25
NC
11
U1
MAX 1 270BCAI+
+5V
GND
GND
+5V-ISO
SCL
SDA
AGND
ISO-GND
ISO-GND
+5V-ISO
1 6
52
U4A
NC7WZ17P6X
ISO-GND
+5V-ISO
ISO-GND
1
3
2
4
5
6
U2
SMS12
C13
0.1uF
C14
0.1uF
C12
0.1uF
C11
0.01uF
BLU
DS1
SDA
C8
0.1uF
C9
0.1uF
C2
0.1uF
C3
0.1uF
C4
0.1uF
C5
0.1uF
C6
0.1uF
C7
0.1uF
C10
4.7uF
AN-CH0
AN-CH 1
AN-CH2
AN-CH3
AN-CH 4
AN-CH5
AN-CH6
AN-CH7
R9
4.99
C27
4.7uF
+5V-ADC
ISO-GND
ISO-GND
R3
1K
R5
2.2k
R6
2.2k
1
3
2
4
5
6
U3
SMS12
3 4
U4B
NC7WZ17P6X
R4
1K
BLU
DS2
SCL
C15
.01/2KV
GND1
1
NC
2
VDD1
3
NC
4
SDA1
5
SCL 1
6
GND1
7
NC
8
GND2
9
NC
15
VDD2
14
NC
13
SDA2
12
SCL 2
11
GND2
16
NC
10
U5
ADuM2250
R17
49.9
ISO-GND
TP7
TP8
TP5
TP6
C29
1nF
R18
49.9
C30
1nF
AGND
AGND
C1
0.1uF
TP4
AGND
ISO-GND
CHASSIS
PRINTED DOCUM E NT S ARE UNCONTROLL ED
DCN:6092
07223C DCN6572
D-31