ideal for automatic test equipment, DAC-per-pin pro-
grammers, data acquisition systems, and closed-loop
servo-control. The DAC7644 is available in a 48-lead
SSOP package and offers guaranteed specifications
over the –40°C to +85°C temperature range.
APPLICATIONS
q
PROCESS CONTROL
q
CLOSED-LOOP SERVO-CONTROL
q
MOTOR CONTROL
q
DATA ACQUISITION SYSTEMS
q
DAC-PER-PIN PROGRAMMERS
V
DD
V
SS
V
CC
V
REF
L
AB Sense
V
REF
L AB V
REF
H AB
V
REF
H
AB Sense
DAC7644
16
DATA I/O
I/O
Buffer
Input
Register A
DAC
Register A
DAC A
V
OUT
A
V
OUT
A Sense
Input
Register B
DAC
Register B
DAC B
V
OUT
B
V
OUT
B Sense
A1
A0
CS
R/W
Input
Register C
DAC
Register C
DAC C
Control
Logic
V
OUT
C
V
OUT
C Sense
Input
Register D
DAC
Register D
DAC D
V
OUT
D
V
OUT
D Sense
AGND
DGND
RST
RSTSEL LOADDACS
V
REF
L
CD Sense
V
REF
L CD V
REF
H CD
V
REF
H
CD Sense
International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111
The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN assumes
no responsibility for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specifications are subject to change
without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not authorize or warrant
any BURR-BROWN product for use in life support devices and/or systems.
®
DAC7644
2
SPECIFICATIONS
(Single Supply)
At T
A
= T
MIN
to T
MAX
, V
DD
= V
CC
= +5V, V
SS
= 0V, V
REF
H = +2.5V, and V
REF
L = 0V, unless otherwise noted.
DAC7644E
PARAMETER
ACCURACY
Linearity Error
(1)
Linearity Match
Differential Linearity Error
Monotonicity, T
MIN
to T
MAX
Zero Scale Error
Zero Scale Error Drift
Full-Scale Error
Full-Scale Error Drift
Zero Scale Matching
Full-Scale Matching
Power Supply Rejection Ratio (PSRR)
ANALOG OUTPUT
Voltage Output
Output Current
Maximum Load Capacitance
Short-Circuit Current
Short-Circuit Duration
REFERENCE INPUT
Ref High Input Voltage Range
Ref Low Input Voltage Range
Ref High Input Current
Ref Low Input Current
DYNAMIC PERFORMANCE
Settling Time
Channel-to-Channel Crosstalk
Digital Feedthrough
Output Noise Voltage, f = 10kHz
DAC Glitch
DIGITAL INPUT
V
IH
V
IL
I
IH
I
IL
DIGITAL OUTPUT
V
OH
V
OL
POWER SUPPLY
V
DD
V
CC
V
SS
I
CC
I
DD
Power
TEMPERATURE RANGE
Specified Performance
I
OH
= –0.8mA
I
OL
= 1.2mA
To
±0.003%,
2.5V Output Step
See Figure 6.
CONDITIONS
MIN
TYP
±3
±4
±2
14
±1
5
±1
5
±1
±1
10
0
–1.25
500
±30
Indefinite
V
REF
L + 1.25
0
250
–250
8
0.5
2
60
40
0.7 • V
DD
0.3 • V
DD
±10
±10
3.6
4.5
0.3
+5.0
+5.0
0
1.5
50
7.5
T
0.4
+5.25
+5.25
0
2
10
+85
T
T
T
T
T
T
T
T
T
T
T
T
10
+2.5
V
REF
H – 1.25
T
T
T
T
T
T
T
T
T
T
T
T
T
T
±2
10
±2
10
±2
±2
100
V
REF
H
+1.25
T
T
T
T
T
T
T
MAX
±4
±3
15
T
T
T
T
±1
±1
T
T
T
T
T
±2
±2
T
T
T
MIN
DAC7644EB
TYP
±2
±2
±1
MAX
±3
±2
UNITS
Channel-to-Channel Matching
Channel-to-Channel Matching
At Full Scale
V
REF
L = 0V, V
SS
= 0V, R
L
= 10kΩ
No Oscillation
GND or V
CC
LSB
LSB
LSB
Bits
mV
ppm/°C
mV
ppm/°C
mV
mV
ppm/V
V
mA
pF
mA
V
V
µA
µA
µs
LSB
nV-s
nV/√Hz
nV-s
V
V
µA
µA
V
V
V
V
V
mA
µA
mW
°C
7FFF
H
to 8000
H
or 8000
H
to 7FFF
H
T
T
T
T
T
T
T
+4.75
+4.75
0
–40
NOTE: (1) If V
SS
= 0V specification applies at Code 0040
H
and above due to possible negative zero-scale error.
T
Specifications same as DAC7644E.
®
3
DAC7644
ABSOLUTE MAXIMUM RATINGS
(1)
V
CC
and V
DD
to V
SS
.............................................................. –0.3V to 11V
V
CC
and V
DD
to GND ........................................................... –0.3V to 5.5V
V
REF
L to V
SS
............................................................. –0.3V to (V
CC
– V
SS
)
V
CC
to V
REF
H ............................................................ –0.3V to (V
CC
– V
SS
)
V
REF
H to V
REF
L ......................................................... –0.3V to (V
CC
– V
SS
)
Digital Input Voltage to GND ................................... –0.3V to V
DD
+ 0.3V
Digital Output Voltage to GND ................................. –0.3V to V
DD
+ 0.3V
Maximum Junction Temperature ................................................... +150°C
Operating Temperature Range ........................................ –40°C to +85°C
Storage Temperature Range ......................................... –65°C to +125°C
Lead Temperature (soldering, 10s) ............................................... +300°C
NOTE: (1) Stresses above those listed under “Absolute Maximum Ratings”
may cause permanent damage to the device. Exposure to absolute maximum
conditions for extended periods may affect device reliability.
ELECTROSTATIC
DISCHARGE SENSITIVITY
This integrated circuit can be damaged by ESD. Burr-Brown
recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling
and installation procedures can cause damage.
ESD damage can range from subtle performance degradation
to complete device failure. Precision integrated circuits may
be more susceptible to damage because very small parametric
changes could cause the device not to meet its published
specifications.
PACKAGE/ORDERING INFORMATION
LINEARITY
ERROR
(LSB)
±4
DIFFERENTIAL
NONLINEARITY
(LSB)
±3
PACKAGE
DRAWING
NUMBER
(1)
333
SPECIFICATION
TEMPERATURE
RANGE
–40°C to +85°C
ORDERING
NUMBER
(2)
DAC7644E
DAC7644E/1K
DAC7644EB
DAC7644EB/1K
TRANSPORT
MEDIA
Rails
Tape and Reel
Rails
Tape and Reel
PRODUCT
DAC7644E
PACKAGE
48-Lead SSOP
"
DAC7644EB
"
±3
"
±2
"
48-Lead SSOP
"
333
"
–40°C to +85°C
"
"
"
"
"
"
NOTES: (1) For detailed drawing and dimension table, please see end of data sheet, or Appendix C of Burr-Brown IC Data Book. (2) Models with a slash (/)
are available only in Tape and Reel in the quantities indicated (e.g., /1K indicates 1000 devices per reel). Ordering 1000 pieces of “DAC7644/1K” will get a single
1000-piece Tape and Reel. For detailed Tape and Reel mechanical information, refer to Appendix B of Burr-Brown IC Data Book.
®
DAC7644
4
PIN CONFIGURATION
Top View
DB15
DB14
DB13
DB12
DB11
DB10
DB9
DB8
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
RSTSEL
RST
LOADDACS
R/W
A1
A0
CS
DGND
1
2
3
4
5
6
7
8
9
10
11
12
DAC7644
13
14
15
16
17
18
19
20
21
22
23
24
36
35
34
33
32
31
30
29
28
27
26
25
48
47
46
45
44
43
42
41
40
39
38
37
NC
NC
NC
NC
V
OUT
A Sense
V
OUT
A
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
AGND
V
CC
V
DD
SSOP
PIN DESCRIPTIONS
PIN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
NAME
DB15
DB14
DB13
DB12
DB11
DB10
DB9
DB8
DB7
DB6
DB5
DB4
DB3
DB2
DB1
DB0
RSTSEL
DESCRIPTION
Data Bit 15, MSB
Data Bit 14
Data Bit 13
Data Bit 12
Data Bit 11
Data Bit 10
Data Bit 9
Data Bit 8
Data Bit 7
Data Bit 6
Data Bit 5
Data Bit 4
Data Bit 3
Data Bit 2
Data Bit 1
Data Bit 0, LSB
Reset Select. Determines the action of RST. If
HIGH, a RST command will set the DAC registers to
mid-scale. If LOW, a RST command will set the DAC
registers to zero.
Reset, Rising Edge Triggered. Depending on the
state of RSTSEL, the DAC registers are set to either
京公网安备 11010802033920号
EEWORLD
