參數(shù)資料
型號(hào): DAC8412EP
廠商: ANALOG DEVICES INC
元件分類: DAC
英文描述: Quad, 12-Bit DAC Voltage Output with Readback
中文描述: QUAD, PARALLEL, WORD INPUT LOADING, 10 us SETTLING TIME, 12-BIT DAC, PDIP28
封裝: PLASTIC, MS-001, DIP-28
文件頁數(shù): 1/14頁
文件大?。?/td> 443K
代理商: DAC8412EP
REV. D
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
a
DAC8412/DAC8413
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
Analog Devices, Inc., 2000
Quad, 12-Bit DAC
Voltage Output with Readback
FUNCTIONAL BLOCK DIAGRAM
V
REFH
V
OUTA
V
DD
V
OUTB
V
OUTC
V
OUTD
V
REFL
V
SS
V
LOGIC
DGND
DATA
I/O
A0
A1
R/
W
CS
RESET
LDAC
12
I/O
PORT
CONTROL
LOGIC
INPUT
REG
A
OUTPUT
REG
A
DAC
A
INPUT
REG
B
INPUT
REG
D
INPUT
REG
C
OUTPUT
REG
B
OUTPUT
REG
C
OUTPUT
REG
D
DAC
B
DAC
C
DAC
D
FEATURES
+5 V to 15 V Operation
Unipolar or Bipolar Operation
True Voltage Output
Double-Buffered Inputs
Reset to Min (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 and 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 V
REFH
and V
REFL
. By setting the V
REFL
input to 0 V and V
REFH
to a
positive voltage, the DAC will provide a unipolar positive output
range. A similar configuration with V
REFH
at 0 V and V
REFL
at
a negative voltage will provide a unipolar negative output range.
Bipolar outputs are configured by connecting both V
REFH
and
V
REFL
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 mid-
scale for the DAC8412 and zero scale for the DAC8413.
The DAC8412/DAC8413 are available in 28-lead plastic DIP,
PLCC and LCC packages. 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 ADI 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.
DIGITAL INPUT CODE – Decimal
0.500
0.125
0
4096
512
L
1024
1536
2046
2548
2560
3072
0.375
–0.125
–0.250
–0.375
–0.500
0.250
0
V
DD
= +15V
V
SS
= –15V
V
REFH
= +10V
V
REFL
= –10V
T
A
= –55 C, +25 C, +125 C
+125 C
–55 C
+25 C
Figure 1. INL vs. Code Over Temperature
相關(guān)PDF資料
PDF描述
DAC8412FP Quad, 12-Bit DAC Voltage Output with Readback
DAC8413FP Quad, 12-Bit DAC Voltage Output with Readback
DAC8413FPC Quad, 12-Bit DAC Voltage Output with Readback
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DAC8420FP Quad 12-Bit Serial Voltage Output DAC
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