488
Digital Electronics
12
Fig. 12.21
8
9
10
11
16
15
14
1
2
3
4
5
6
7
8
24
23
22
21
20
19
18
Bit 1
Bit 2
Bit 3
Bit 4
Bit 5
Bit 6
Bit 7
Bit 8
Bit 9
Bit 10
Bit 11
Bit 12
6.3V Reference Out
Gain Adjust
+V
Common
Scaling Network
Scaling Network
Scaling Network
Bipolar Offset
Reference Input
I
V
NC
CC
OUT
CC
−
(MSB)
17
13
12-Bit
Resistor
Ladder
Network
and
Current
Switches
Reference
Control
Circuit
2KΩ
5KΩ
6.3KΩ
3KΩ
(LSB)
Figure 12.16 Pin connection diagram of DAC-80 (current-output version).
12
Fig. 12.21
8
9
10
11
16
15
14
1
2
3
4
5
6
7
8
24
23
22
21
20
19
18
Bit 1
Bit 2
Bit 3
Bit 4
Bit 5
Bit 6
Bit 7
Bit 8
Bit 9
Bit 10
Bit 11
Bit 12
6.3V Reference Out
Gain Adjust
+V
Common
Summing Junction
20V Range
10V Range
Bipolar Offset
Reference Input
V
-V
NC
CC
OUT
CC
(MSB)
17
13
-
+
12-Bit
Resistor
Ladder
Network
and
Current
Switches
Reference
Control
Circuit
5KΩ
5KΩ
6.3KΩ
(LSB)
Figure 12.17 Pin connection diagram of DAC-80 (voltage-output version).