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DAC7744EG4 Datasheet(PDF) 5 Page - Texas Instruments

Part # DAC7744EG4
Description  16-Bit, Quad Voltage Output DIGITAL-TO-ANALOG CONVERTER
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

DAC7744EG4 Datasheet(HTML) 5 Page - Texas Instruments

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5
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DAC7744
PIN DESCRIPTIONS
PIN
NAME
DESCRIPTION
1
DB15
Data Bit 15, MSB
2
DB14
Data Bit 14
3
DB13
Data Bit 13
4
DB12
Data Bit 12
5
DB11
Data Bit 11
6
DB10
Data Bit 10
7
DB9
Data Bit 9
8
DB8
Data Bit 8
9
DB7
Data Bit 7
10
DB6
Data Bit 6
11
DB5
Data Bit 5
12
DB4
Data Bit 4
13
DB3
Data Bit 3
14
DB2
Data Bit 2
15
DB1
Data Bit 1
16
DB0
Data Bit 0, LSB
17
RSTSEL
Reset Select. Determines the action of RST. If
HIGH, a RST command will set the DAC regis-
ters to mid-scale. If LOW, a RST command will
set the DAC registers to zero.
18
RST
Reset, Edge-Triggered. Depending on the state
of RSTSEL, the DAC Input and Output registers
are set to either mid-scale or zero.
19
LOADDACs
DAC Output Registers Load Control. Rising edge
triggered.
20
R/W
Enabled by the CS, controls data read and write
from the input register.
21
A1
Enabled by the CS, in combination with A0
selects the Individual DAC Input Registers.
22
A0
Enabled by the CS, in combination with A1
selects the individual DAC input registers.
23
CS
Chip Select, Active LOW.
24
DGND
Digital Ground
25
VDD
Positive Power Supply
26
VCC
Positive Power Supply
27
AGND
Analog Ground
28
VSS
Negative Power Supply
29
VOUTD
DAC D Voltage Output
30
VOUTD Sense
DAC D’s Output Amplifier Inverting Input. Used
to close the feedback loop at the load.
31
VREFL CD Sense
DAC C and D Reference Low Sense Input
32
VREFL CD
DAC C and D Reference Low Input
33
VREFH CD
DAC C and D Reference High Input
34
VREFH CD Sense DAC C and D Reference High Sense Input
35
VOUTC
DAC C Voltage Output
36
VOUTC Sense
DAC C’s Output Amplifier Inverting Input. Used
to close the feedback loop at the load.
37
VOUTB
DAC B Voltage Output
38
VOUTB Sense
DAC B’s Output Amplifier Inverting Input. Used
to close the feedback loop at the load.
39
VREFH AB Sense DAC A and B Reference High Sense Input
40
VREFH AB
DAC A and B Reference High Input
41
VREFL AB
DAC A and B Reference Low Input
42
VREFL AB Sense
DAC A and B Reference Low Sense Input
43
VOUTA
DAC A Voltage Input
44
VOUTA Sense
DAC A’s Output Amplifier Inverting Input. Used
to close the feedback loop at the load.
45
NC
No Connection
46
NC
No Connection
47
NC
No Connection
48
NC
No Connection
Top View
SSOP
PIN CONFIGURATION
DB15 (MSB)
DB14
DB13
DB12
DB11
DB10
DB9
DB8
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0 (LSB)
RSTSEL
RST
LOADDACs
R/W
A1
A0
CS
DGND
NC
NC
NC
NC
V
OUTA Sense
V
OUTA
V
REFL AB Sense
V
REFL AB
V
REFH AB
V
REFH AB Sense
V
OUTB Sense
V
OUTB
V
OUTC Sense
V
OUTC
V
REFH CD Sense
V
REFH CD
V
REFL CD
V
REFL CD Sense
V
OUTD Sense
V
OUTD
V
SS
AGND
V
CC
V
DD
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
DAC7744


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