DAC7714
Copyright 2000, Texas Instruments Incorporated
PDS-1533A
Printed in U.S.A. September, 2000
Quad, Serial Input, 12-Bit, Voltage Output
DIGITAL-TO-ANALOG CONVERTER
FEATURES
q
LOW POWER: 250mW (max)
q
UNIPOLAR OR BIPOLAR OPERATION
q
SETTLING TIME: 10
s to 0.012%
q
12-BIT LINEARITY AND MONOTONICITY:
40
C to +85
C
q
USER SELECTABLE RESET TO MID-
SCALE OR ZERO-SCALE
q
SECOND-SOURCE for DAC8420
q
SMALL SO-16 PACKAGE
APPLICATIONS
q
ATE PIN ELECTRONICS
q
PROCESS CONTROL
q
CLOSED-LOOP SERVO-CONTROL
q
MOTOR CONTROL
q
DATA ACQUISITION SYSTEMS
DESCRIPTION
The DAC7714 is a quad, serial input, 12-bit, voltage
output Digital-to-Analog Converter (DAC) with guar-
anteed 12-bit monotonic performance over the 40
C
to +85
C temperature range. An asynchronous reset
clears all registers to either mid-scale (800
H
) or zero-
scale (000
H
), selectable via the RESETSEL pin. The
device can be powered from a single +15V supply or
from dual +15V and 15V supplies.
Low power and small size makes the DAC7714 ideal
for process control, data acquisition systems, and
closed-loop servo-control. The device is available in a
SO-16 package, and is guaranteed over the 40
C to
+85
C temperature range.
DAC A
DAC
Register A
DAC B
DAC
Register B
DAC C
DAC
Register C
DAC D
DAC
Register D
V
REFH
V
CC
V
SS
V
OUTD
V
OUTC
V
OUTB
V
OUTA
V
REFL
GND
CLK
CS
12
SDI
RESET
RESETSEL
LOADDACS
Serial-to-
Parallel
Shift
Register
DAC
Select
DAC7714
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
Twx: 910-952-1111 Cable: BBRCORP Telex: 066-6491 FAX: (520) 889-1510 Immediate Product Info: (800) 548-6132
http://www.burr-brown.com/ http://www.ti.com/
SBAS119
2
DAC7714
SPECIFICATIONS (Dual Supply)
At T
A
= 40
C to +85
C, V
CC
= +15V, V
SS
= 15V, V
REFH
= +10V, V
REFL
= 10V, unless otherwise noted.
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.
DAC7714U
DAC7714UB
PARAMETER
CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
UNITS
ACCURACY
Linearity Error
2
1
LSB
(1)
Linearity Matching
(2)
2
1
LSB
Differential Linearity Error
1
1
LSB
Monotonicity
T
MIN
to T
MAX
12
T
Bits
Zero-Scale Error
Code = 000
H
2
T
LSB
Zero-Scale Drift
1
T
ppm/
C
Zero-Scale Matching
(2)
2
1
LSB
Full-Scale Error
Code = FFF
H
2
T
LSB
Full-Scale Matching
(2)
2
1
LSB
Power Supply Sensitivity
At Full Scale
10
T
ppm / V
ANALOG OUTPUT
Voltage Output
(3)
V
REFL
V
REFH
T
T
V
Output Current
5
+5
T
T
mA
Load Capacitance
No Oscillation
500
T
pF
Short-Circuit Current
20
T
mA
Short-Circuit Duration
To V
SS
, V
CC
, or GND
Indefinite
T
REFERENCE INPUT
V
REFH
Input Range
V
REFL
+1.25
+10
T
T
V
V
REFL
Input Range
10
V
REFH
1.25
T
T
V
Ref High Input Current
0.5
3.0
T
T
mA
Ref Low Input Current
3.5
0
T
T
mA
DYNAMIC PERFORMANCE
Settling Time
To
0.012%, 20V Output Step
8
10
T
T
s
Channel-to-Channel Crosstalk
Full-Scale Step
0.25
T
LSB
Digital Feedthrough
2
T
nV-s
Output Noise Voltage
f = 10kHz
65
T
nV/
Hz
DIGITAL INPUT
Logic Levels
V
IH
I
IH
10
A
3.325
T
V
V
IL
I
IL
10
A
1.575
T
V
Data Format
Straight Binary
T
POWER SUPPLY REQUIREMENTS
V
CC
+14.25
+15.75
T
T
V
V
SS
15.75
14.25
T
T
V
I
CC
6
8.5
T
T
mA
I
SS
8
6
T
T
mA
Power Dissipation
180
250
T
T
mW
TEMPERATURE RANGE
Specified Performance
40
+85
T
T
C
NOTES: (1) LSB means Least Significant Bit; if V
REFH
equals +10V and V
REFL
equals 10V, then one LSB equals 4.88mV. (2) All DAC outputs will match within
the specified error band. (3) Ideal output voltage does not take into account zero or full-scale error.
3
DAC7714
SPECIFICATIONS (Single Supply)
At T
A
= 40
C to +85
C, V
CC
= +15V, V
SS
= GND, V
REFH
= +10V, V
REFL
= 0V, unless otherwise noted.
DAC7714U
DAC7714UB
PARAMETER
CONDITIONS
MIN
TYP
MAX
MIN
TYP
MAX
UNITS
ACCURACY
Linearity Error
(1)
2
1
LSB
(2)
Linearity Matching
(3)
2
1
LSB
Differential Linearity Error
1
1
LSB
Monotonicity
T
MIN
to T
MAX
12
T
Bits
Zero-Scale Error
Code = 004
H
4
T
LSB
Zero-Scale Drift
2
T
ppm/
C
Zero-Scale Matching
(3)
4
2
LSB
Full-Scale Error
Code = FFF
H
4
T
LSB
Full-Scale Matching
(3)
4
2
LSB
Power Supply Sensitivity
At Full Scale
20
T
ppm /V
ANALOG OUTPUT
Voltage Output
(4)
V
REFL
V
REFH
T
T
V
Output Current
5
+5
T
mA
Load Capacitance
No Oscillation
500
T
pF
Short-Circuit Current
20
T
mA
Short-Circuit Duration
To V
CC
or GND
Indefinite
T
REFERENCE INPUT
V
REFH
Input Range
V
REFL
+1.25
+10
T
T
V
V
REFL
Input Range
0
V
REFH
1.25
T
T
V
Ref High Input Current
0.3
1.5
T
T
mA
Ref Low Input Current
2.0
0
T
T
mA
DYNAMIC PERFORMANCE
Settling Time
(5)
To
0.012%, 10V Output Step
8
10
T
T
s
Channel-to-Channel Crosstalk
0.25
T
LSB
Digital Feedthrough
2
T
nV-s
Output Noise Voltage
f = 10kHz
65
T
nV/
Hz
DIGITAL INPUT/OUTPUT
Logic Levels
V
IH
I
IH
10
A
3.325
T
V
V
IL
I
IL
10
A
1.575
T
V
Data Format
Straight Binary
T
POWER SUPPLY REQUIREMENTS
V
CC
14.25
15.75
T
T
V
I
CC
3.0
T
T
mA
Power Dissipation
45
T
mW
TEMPERATURE RANGE
Specified Performance
40
+85
T
T
C
NOTES: (1) If V
SS
= 0V, specification applies at code 004
H
and above. (2) LSB means Least Significant Bit; if V
REFH
equals +10V and V
REFL
equals 0V, then one
LSB equals 2.44mV. (3) All DAC outputs will match within the specified error band. (4) Ideal output voltage does not take into account zero or full-scale error.
(5) Full-scale positive 10V step and negative step from code FFF
H
to 020
H
.
4
DAC7714
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
MAXIMUM
LINEARITY
DIFFERENTIAL
PACKAGE
SPECIFICATION
ERROR
LINEARITY
DRAWING
TEMPERATURE
ORDERING
TRANSPORT
PRODUCT
(LSB)
(LSB)
PACKAGE
NUMBER
RANGE
NUMBER
(1)
MEDIA
DAC7714U
2
1
SO-16
211
40
C to +85
C
DAC7714U
Rails
"
"
"
"
"
"
DAC7714U/1K
Tape and Reel
DAC7714UB
1
1
SO-16
211
40
C to +85
C
DAC7714UB
Rails
"
"
"
"
"
"
DAC7714UB/1K
Tape and Reel
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 "DAC7714UB/1K" will get a single 1000-piece Tape and Reel.
REF
H
Typical of Each
Logic Input Pin
Internal V
DD
REF
L
V
SS
V
OUT
V
SS
GND
V
CC
V
CC
ESD PROTECTION CIRCUITS
ABSOLUTE MAXIMUM RATINGS
(1)
V
CC
to V
SS
........................................................................... 0.3V to +32V
V
CC
to GND ......................................................................... 0.3V to +16V
V
SS
to GND ......................................................................... +0.3V to 16V
V
REF
H to GND ....................................................................... 9V to +11V
V
REF
L to GND (V
SS
= 15V) ................................................. 11V to +9V
V
REF
L to GND (V
SS
= 0V) .................................................... 0.3V to +9V
V
REFH
to V
REFL
....................................................................... 1V to +22V
Digital Input Voltage to GND .............................................. 0.3V to 5.8V
Digital Output Voltage to GND ............................................ 0.3V to 5.8V
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.
5
DAC7714
PIN CONFIGURATION--U Package
Top View
SO
PIN DESCRIPTIONS--U Package
PIN
LABEL
DESCRIPTION
1
V
CC
Positive Analog Supply Voltage, +15V nominal.
2
V
OUTD
DAC D Voltage Output
3
V
OUTC
DAC C Voltage Output
4
V
REFL
Reference Input Voltage Low. Sets minimum
output voltage for all DACs.
5
V
REFH
Reference Input Voltage High. Sets maximum
output voltage for all DACs.
6
V
OUTB
DAC B Voltage Output
7
V
OUTA
DAC A Voltage Output
8
V
SS
Negative Analog Supply Voltage, 0V or 15V
nominal.
9
GND
Ground
10
SDI
Serial Data Input
11
CLK
Serial Data Clock
12
CS
Chip Select Input
13
NIC
Not Internally Connected
14
LOADDACS
The selected DAC register becomes transparent
when LOADDACS is LOW. It is in the latched
state when LOADDACS is HIGH.
15
RESET
Asynchronous Reset Input. Sets all DAC
registers to either zero-scale (000
H
) or mid-
scale (800
H
) when LOW. RESETSEL determines
which code is active.
16
RESETSEL
When LOW, a LOW on RESET will cause all
DAC registers to be set to code 000
H
. When
RESETSEL is HIGH, a LOW on RESET will set
the registers to code 800
H
.
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
V
CC
V
OUTD
V
OUTC
V
REFL
V
REFH
V
OUTB
V
OUTA
V
SS
RESETSEL
RESET
LOADDACS
NIC
CS
CLK
SDI
GND
DAC7714U
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