5
®
DAC7734
Top View SSOP
PIN CONFIGURATION
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
DAC7734
PIN NAME DESCRIPTION
1 NC No Connection
2 NC No Connection
3 SDI Serial Data Input
4 DGND Digital Ground
5 CLK Data Clock Input
6 DGND Digital Ground
7 LDAC DAC Register Load Control, Rising Edge
Triggered
8 DGND Digital Ground
9 LOAD DAC Input Register Load Control, Active Low
10 DGND Digital Ground
11 CS Chip Select, Active Low
12 DGND Digital Ground
13 SDO Serial Data Output
14 DGND Digital Ground
15 RSTSEL Reset Select. Determines the action of RST. If
HIGH, a RST common will set the DAC registers
to mid-scale (8000H). If LOW, a RST command
will set the DAC registers to zero (0000H).
16 DGND Digital Ground
17 RST Reset, Rising Edge Triggered. Depending on the
state of RSTSEL, the DAC registers are set to
either mid-scale or zero.
18 DGND Digital Ground
19 NC No Connection
20 NC No Connection
21 DGND Digital Ground
22 DGND Digital Ground
23 V
DD
Digital +5V Power Supply
24 V
DD
Digital +5V Power Supply
25 V
CC
Analog +15V Power Supply
26 V
CC
Analog +15V Power Supply
27 AGND Analog Ground
28 AGND Analog Ground
29 V
SS
Analog –15V Power Supply or 0V Single Supply
30 V
SS
Analog –15V Power Supply or 0V Single Supply
31 V
OUT
D DAC D Output Voltage
32 V
OUT
D Sense DAC D’s Output Amplifier Inverting Input. Used
to close feedback loop at load.
33 V
REF
L CD Sense DAC C and D Reference Low Sense Input
34 V
REF
L CD DAC C and D Reference Low Input
35 V
REF
H CD DAC C and D Reference High Input
36 V
REF
H CD Sense DAC C and D Reference High Sense Input
37 V
OUT
C DAC C Output Voltage
38 V
OUT
C Sense DAC C’s Output Amplifier Inverting Input. Used
to close the feedback loop at the load.
39 V
OUT
B DAC B Output Voltage
40 V
OUT
B Sense DAC B’s Output Amplifier Inverting Input. Used
to close the feedback loop at the load.
41 V
REF
H AB Sense DAC A and B Reference High Sense Input
42 V
REF
H AB DAC A and B Reference High Input
43 V
OUT
L AB DAC A and B Reference Low Input
44 V
REF
L AB Sense DAC A and B Reference Low Sense Input
45 V
SS
Analog –15V Power Supply or 0V Single Supply
46 AGND Analog Ground
47 V
OUT
A DAC A Output Voltage
48 V
OUT
A Sense DAC A’s Output Amplifier Inverting Input. Used
to close the feedback loop at the load.
PIN DESCRIPTIONS