Quad, 12-Bit DAC
Voltage Output with Readback
DAC8412/DAC8413
Data Sheet
FEATURES
FUNCTIONAL BLOCK DIAGRAM
+5 V to ±15 V operation
Unipolar or bipolar operation
True voltage output
Double-buffered inputs
Reset to minimum (DAC8413) or center scale (DAC8412)
Fast bus access time
Readback
VLOGIC
DATA
I/O
12
I/O
PORT
VREFH
A1
CONTROL
LOGIC
R/W
OUTPUT
REG A
DAC A
VOUTA
OUTPUT
REG B
DAC B
VOUTB
INPUT
REG C
OUTPUT
REG C
DAC C
VOUTC
INPUT
REG D
A0
INPUT
REG A
INPUT
REG B
DGND
CS
APPLICATIONS
VDD
OUTPUT
REG D
DAC D
VOUTD
00274-001
RESET
LDAC
Automatic test equipment
Digitally controlled calibration
Servo controls
Process control equipment
VREFL VSS
Figure 1.
GENERAL DESCRIPTION
The DAC8412/DAC8413 are quad, 12-bit voltage output
DACs with readback capability. Built using a complementary
BiCMOS process, these monolithic DACs offer the user very
high package density.
They can be operated from a wide variety of supply and reference
voltages with supplies ranging from single +5 V to ±15 V, and
references from +2.5 V to ±10 V. Power dissipation is less than
330 mW with ±15 V supplies and only 60 mW with a +5 V supply.
Output voltage swing is set by the two reference inputs VREFH
and VREFL. By setting the VREFL input to 0 V and VREFH to a
positive voltage, the DAC provides a unipolar positive output
range. A similar configuration with VREFH at 0 V and VREFL at a
negative voltage provides a unipolar negative output range.
Bipolar outputs are configured by connecting both VREFH and
VREFL to nonzero voltages. This method of setting output voltage
range has advantages over other bipolar offsetting methods
because it is not dependent on internal and external resistors
with different temperature coefficients.
For MIL-STD-883 applications, contact your local Analog
Devices, Inc. sales office for the DAC8412/DAC8413/883 data
sheet, which specifies operation over the −55°C to +125°C
temperature range. All 883 parts are also available on Standard
Military Drawings 5962-91 76401MXA through 76404M3A.
The DAC8412/DAC8413 are available in 28-lead plastic DIP,
28-lead ceramic DIP, 28-lead PLCC, and 28-lead LCC packages.
+125°C
+25°C
0.250
0.125
0
–55°C
–0.125
VDD = +15V
VSS = –15V
VREFH = +10V
VREFL = –10V
TA = –55°C, +25°C, +125°C
–0.250
–0.375
–0.500
0
512
1024
1536
2046
2548
2560
DIGITAL INPUT CODE (Decimal)
3072
4096
00274-002
An active low RESET loads all DAC output registers to midscale
for the DAC8412 and zero scale for the DAC8413.
0.375
LINEARITY ERROR (LSB)
Digital controls allow the user to load or read back data from any
DAC, load any DAC, and transfer data to all DACs at one time.
0.500
Figure 2. INL vs. Code Over Temperature
Rev. G
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