DAC8413BT/883C View Datasheet(PDF) - Analog Devices
Part Name
Description
Manufacturer
DAC8413BT/883C Datasheet PDF : 20 Pages
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Data Sheet
FEATURES
+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
APPLICATIONS
Automatic test equipment
Digitally controlled calibration
Servo controls
Process control equipment
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.
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.
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.
An active low RESET loads all DAC output registers to midscale
for the DAC8412 and zero scale for the DAC8413.
The DAC8412/DAC8413 are available in 28-lead plastic DIP,
28-lead ceramic DIP, 28-lead PLCC, and 28-lead LCC packages.
Quad, 12-Bit DAC
Voltage Output with Readback
DAC8412/DAC8413
FUNCTIONAL BLOCK DIAGRAM
VLOGIC
VDD VREFH
DATA 12
I/O
DGND
I/O
PORT
A0
A1
CONTROL
R/W
LOGIC
CS
INPUT
REG A
INPUT
REG B
INPUT
REG C
INPUT
REG D
OUTPUT
REG A
OUTPUT
REG B
OUTPUT
REG C
OUTPUT
REG D
DAC A
DAC B
DAC C
DAC D
RESET
LDAC
Figure 1.
VREFL VSS
VOUTA
VOUTB
VOUTC
VOUTD
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.
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.
0.500
0.375
0.250
+25°C
+125°C
0.125
0
–0.125
–55°C
–0.250
–0.375
–0.500
0
VDD = +15V
VSS = –15V
VREFH = +10V
VREFL = –10V
TA = –55°C, +25°C, +125°C
512 1024 1536 2046 2548 2560
DIGITAL INPUT CODE (Decimal)
3072
Figure 2. INL vs. Code Over Temperature
4096
Rev. G
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