Datasheet

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R
2R2R2R 2R 2R 2R 2R 2R 2R
V
REF
H
V
OUT
V
OUT
Sense
V
REF
H Sense
V
REF
L
V
REF
L Sense
R
F
NC
NC
SDI
DGND
CLK
DGND
LDAC
DGND
LOAD
DGND
CS
DGND
SDO
DGND
RSTSEL
DGND
RST
DGND
NC
NC
DGND
DGND
V
DD
V
DD
V
OUT
A Sense
V
OUT
A
AGND
V
SS
V
REF
L AB Sense
V
REF
L AB
V
REF
H AB
V
REF
H AB Sense
V
OUT
B Sense
V
OUT
B
V
OUT
C Sense
V
OUT
C
V
REF
H CD Sense
V
REF
H CD
V
REF
L CD
V
REF
L CD Sense
V
OUT
D Sense
V
OUT
D
V
SS
V
SS
AGND
AGND
V
CC
V
CC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
DAC7634
Reset DAC Registers
Chips Select
Serial Data Out
Serial Data In
Clock
Load DAC Registers
Load
NC = No Connection
0V to +2.5V
0V to +2.5V
0V to +2.5V
0V to +2.5V
+2.5000V
+2.5000V
+5V
0.1∝F 1∝
DAC7634
SBAS134B – JULY 2004 – REVISED DECEMBER 2005
Figure 48. DAC7634 Architecture
Figure 49. Basic Single-Supply Operation of the DAC7634
17