Fluke PM6685 - Page 75

Interpolators, PCB 1, sheet 5(5)
Drawings & Diagrams 8-13
VREF-
VREF+
VREF+
VREF-
+5ADC
VREF-
AR6
AR5
AR4
AR2
AD9
AD8
AD[0-15]
AR7
AD[0-15]
AR4
AR5
AR7
AR6
AR3
AD9
AD8
AR0
AR1
AR2
AR1
AR0
AR3
VREF+
+5V
+12J
+5V
+12J
+5J
+5J
+5V
+5V
+5J
+12J
+5J
+5V
+12V
CSIA
CSIB
SXB
PXB
SXA
PXA
AD[0-15]
AR[0-7]
Q31
BFS17
C153
470pF
U44E
HC125
VCC
14
GND
7
C173
10n
R289
220
10n
C108
U44D
HC125
12 11
13
C167
100nF
C168
100nF
C154
22p
U34E
U32B
HC00
VCC
14
GND
7
+
-
U38B
NE532D
6
5
7
BAV99
D25
C159
100nF
R290
100
C163
100nF
R280
820
C150
390pF
R272
2.2K
C148
470pF
R275
2.2K
HC573
U32A
D0
2
D5
7
Q0
19
D3
5
OE
1
Q5
14
Q3
16
Q6
13
D1
3
D6
8
D4
6
Q1
18
C1
11
Q4
15
Q2
17
D2
4
Q7
12
D7
9
C147
Not Used
R291
47
27
HC573
U36A
D0
2
D5
7
Q0
19
D3
5
OE
1
Q5
14
Q3
16
Q6
13
D1
3
D6
8
D4
6
Q1
18
C1
11
Q4
15
Q2
17
D2
4
Q7
12
D7
9
BFT92
Q28
L19
BLM21A102S
R283
100
&
U30A
HC00
1
2
3
BAV99
D23
U44A
HC125
2 3
1
10n
C112
U31A
ADC1061
INT
2
S/H
3
RD
4
CS
5
VREF-
7
VIN
8
VREF+
9
DB2
18
DB1
19
DB0
20
DB6
14
DB5
15
DB4
16
DB3
17
DB7
13
DB8
12
DB9
11
L20
BLM21A102S
C174
100nF
R285
33K
C164
2.2uF-6.3V
&
U34B
HC00
4
5
6
C156
15uF-6.3V
R294
C149
22p
C169
10n
10n
U44C
HC125
9 8
10
U35A
ADC1061
INT
2
S/H
3
RD
4
CS
5
VREF-
7
VIN
8
VREF+
9
DB2
18
DB1
19
DB0
20
DB6
14
DB5
15
DB4
16
DB3
17
DB7
13
DB8
12
DB9
11
U38C
NE532D
V+
8
V-
4
&
U34D
HC00
12
13
11
R287
0
VCC
1
+VCC
6
GND
10
C152
Not Used
&
U30D
HC00
12
13
11
C151
10p
R270
8.2K
R284
2.2K
C166
15uF-6.3V
R281
2.2K
BAV99
D26
C146
10p
+
-
U38A
NE532D
2
3
1
C172
2.2uF-6.3V
C157
15uF-6.3V
R277
33K
R295
270
R269
220
U44B
HC125
5 6
4
U36B
HC573HC573
VCC
20
GND
10
10n
C78
R273
47
BAV99
D24
BAV99
D21
R292
0
U30E
HC00
VCC
14
GND
7
BFT92
Q30
BAV99
D22
C118
10n
&
U30B
HC00
4
5
6
U35B
ADC1061
U31B
ADC1061
VCC
1
+VCC
6
GND
10
R288
33
R271
820
R286
33K
C165
10n
R278
220
C145
390pF
&
U34C
HC00
9
10
8
R293
330
L18
BLM21A102S
C158
100nF
C160
100nF
C161
100nF
Q29
BFS17
R279
8.2K
VCC
20
GND
10
&
U34A
HC00
1
2
3
10n
C81
&
U30C
HC00
9
10
8
R282
47
C162
C155
C170 C171
100nF
100nF 100nF
R276
33K
R274
100