DAC7741Y Burr-Brown Corporation, DAC7741Y Datasheet - Page 5

• Manufacturer Part Number: DAC7741Y
• Description: 16-Bit/ Single Channel DIGITAL-TO-ANALOG CONVERTER With Internal Reference and Parallel Interface
• Manufacturer: Burr-Brown Corporation

PIN DESCRIPTIONS
PIN CONFIGURATION
DAC7741
PIN
Top View
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
1
2
3
4
5
6
7
8
9
SBAS248A
R
NAME
AGND
AGND
RFB2
RFB1
TEST
V
V
OFFSET
DB0
DB1
DB2
DB3
DB4
DB5
DB6
DB7
V
V
NC
NC
NC
NC
NC
NC
NC
NC
SJ
REF
OUT
SS
CC
DESCRIPTION
No Connection
Negative Analog Power Supply.
Positive Analog Power Supply.
Buffered Output from REF
drive external devices. Internally, this pin
directly drives the DAC circuitry.
Offsetting Resistor
Analog ground (Must be tied to analog ground)
Analog ground (Must be tied to analog ground)
Feedback Resistor 2, used to configure DAC
output range.
Feedback Resistor 1, used to configure DAC
output range.
Summing Junction of the Output Amplifier
DAC Voltage Output
No Connection
No Connection
No Connection
No Connection
Data Bit 0 (LSB)
Data Bit 1
Data Bit 2
Data Bit 3
Data Bit 4
Data Bit 5
Data Bit 6
No Connection
No Connection
No Connection
Reserved, Connect to DGND
Data Bit 7
R
AGND
AGND
OFFSET
RFB2
RFB1
V
V
V
V
OUT
NC
REF
NC
SJ
CC
SS
10
11
12
1
2
3
4
5
6
7
8
9
48
13
IN
, can be used to
47
14
46
15
45
16
44
17
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DAC7741
43
18
PIN
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
42
19
41
20
RSTSEL
REFADJ
40
21
REF
REFEN
DGND
NAME
LDAC
REF
DB10
DB11
DB12
DB13
DB14
DB15
DB8
DB9
RST
R/W
V
NC
NC
CS
DD
OUT
39
22
IN
38
23
Data Bit 8
Data Bit 9
Data Bit 10
Data Bit 11
Data Bit 12
Data Bit 13
Data Bit 14
Data Bit 15 (MSB)
No Connection
Digital Ground
Digital Power Supply
V
RSTSEL, the DAC register is either reset to mid-
scale or min-scale.
DAC register load control, rising edge triggered.
Data is loaded from the input register to the DAC
register.
Chip Select, active LOW
Enabled by CS, controls data read (HIGH) and
write (LOW) from or to the input register.
Reset Select; determines the action of RST. If
HIGH, RST will reset the DAC register to mid-
scale. If LOW, RST will reset the DAC register to
min-scale.
Enables internal +10V reference (REF
LOW.
Internal Reference Output
Internal Reference Trim. (Acts as a gain
adjustment input when the internal reference is
used.)
Reference Input
No Connection
DESCRIPTION
37
24
OUT
reset; active LOW, depending on the state of
36
35
34
33
32
31
30
29
28
27
26
25
NC
DB15
DB14
DB13
DB12
DB11
DB10
DB9
DB8
DB7
TEST
NC
OUT
), active
LQFP
5