The DAC7631 is a serial input, 16-bit, voltage out-
put Digital-to-Analog Converter (D/A) with guaran-
teed 15-bit monotonic performance over the –40°C to
+85°C temperature range. An asynchronous reset clears
all registers to either mid-scale (8000
H
) or zero-scale
(0000
H
), selectable via the RESETSEL pin. The de-
vice can be powered from a single +5V supply or from
dual +5V and –5V supplies.
Low power and small size makes the DAC7631 ideal
for process control, data acquisition systems, and
closed-loop servo-control. The device is available in a
SSOP-20 package, and is guaranteed over the
–40°C to +85°C temperature range.
SDO
V
DD
V
CC
V
SS
V
REF
L
Sense
V
REF
L
V
REF
H
V
REF
H
Sense
CLK
CS
Shift
Register
Input
Register
DAC
Register
DAC A
V
OUT
V
OUT
Sense
SDI
DAC7631
LOAD
RSTSEL
RST
LDAC
DGND
AGND
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.
®
DAC7631
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.
DAC7631E
PARAMETER
ACCURACY
Linearity Error
(1)
Differential Linearity Error
Monotonicity, T
MIN
to T
MAX
Zero Scale Error
Zero Scale Error Drift
Full-Scale Error
Full-Scale Error Drift
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
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
= 1.6mA
To
±0.003%,
2.5V Output Step
CONDITIONS
MIN
TYP
±3
±2
14
±1
5
±1
5
10
0
–1.25
500
±30
Indefinite
V
REF
L + 1.25
0
250
–250
8
2
60
40
0.7 • V
DD
0.3 • V
DD
±10
±10
3.6
4.5
0.3
+5.0
+5.0
0
0.4
50
1.8
T
0.4
+5.25
+5.25
0
0.5
2.5
+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
±2
10
±2
10
100
V
REF
H
+1.25
T
T
T
T
T
T
T
MAX
±4
±3
15
T
T
T
T
T
T
T
T
T
T
T
T
MIN
DAC7631EB
TYP
±2
±1
MAX
±3
±2
UNITS
At Full Scale
V
REF
L = 0V, V
SS
= 0V, R
L
= 10kΩ
No Oscillation
GND or V
CC
LSB
LSB
Bits
mV
ppm/°C
mV
ppm/°C
ppm/V
V
mA
pF
mA
V
V
µA
µA
µs
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 DAC7631E.
®
3
DAC7631
ABSOLUTE MAXIMUM RATINGS
(1)
V
DD
to V
SS
........................................................................... –0.3V to +11V
V
DD
to GND ........................................................................ –0.3V to +5.5V
V
REFL
to V
SS
............................................................... –0.3V to (V
DD
– V
SS
)
V
DD
to V
REFH
.............................................................. –0.3V to (V
DD
– V
SS
)
V
REFH
to V
REFL
............................................................ –0.3V to (V
DD
– V
SS
)
Digital Input 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 +150°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
MAXIMUM
LINEARITY
ERROR
(LSB)
±4
MAXIMUM
DIFFERENTIAL
LINEARITY
(LSB)
±3
PACKAGE
DRAWING
NUMBER
334
SPECIFICATION
TEMPERATURE
RANGE
–40°C to +85°C
PRODUCT
DAC7631E
PACKAGE
SSOP-20
ORDERING
NUMBER
(1)
DAC7631E
DAC7631E/1K
DAC7631EB
DAC7631EB/1K
TRANSPORT
MEDIA
Rails
Tape and Reel
Rails
Tape and Reel
"
DAC7631EB
"
±3
"
±2
"
SSOP-20
"
334
"
–40°C to +85°C
"
"
"
"
"
"
NOTE : (1) 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 “DAC7631E/1K” will get a single 1000-piece Tape and Reel.
®
DAC7631
4
PIN CONFIGURATION
Top View
SSOP
PIN DESCRIPTIONS
PIN
1
2
LABEL
V
REF
H
V
REF
H Sense
V
REF
L
V
REF
L Sense
DGND
V
DD
SDO
SDI
CLK
CS
LDAC
LOAD
RST
DESCRIPTION
DAC Reference High Input
DAC Reference Sense High Input
DAC Reference Low Input
DAC Reference Sense Low Input
Digital Ground
Logic Power Supply
Serial Data Output
Serial Data Input
Data Clock
Chip Select, Active LOW.
DAC Register Load Control, Rising Edge Triggered.
DAC Input Register Load Control, Active LOW.
Reset, Rising Edge. Depending on the state of
RSTSEL, the DAC Register is set to either midscale
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