參數(shù)資料
型號(hào)： AD5554BRS
廠商： ANALOG DEVICES INC
元件分類(lèi)： DAC
英文描述： Quad, Current-Output Serial-Input, 16-Bit/14-Bit DACs
中文描述： QUAD, SERIAL INPUT LOADING, 2 us SETTLING TIME, 14-BIT DAC, PDSO28
封裝： SSOP-28
文件頁(yè)數(shù)： 1/16頁(yè)
文件大?。?/td> 473K
代理商： AD5554BRS
REV. 0
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
AD5544/AD5554
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, Current-Output
Serial-Input, 16-Bit/14-Bit DACs
FUNCTIONAL BLOCK DIAGRAM
INPUT
REGISTER R
16
DAC A
REGISTER R
2:4
DECODE
DAC A
B
C
D
POWER-
ON
RESET
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
D14
D15
A0
A1
DAC B
DAC C
DAC D
DAC A
EN
V
DD
R
FB
A
I
OUT
A
A
GND
A
A
GND
F
V
SS
LDAC
MSB
RS
DGND
CLK
CS
SDI
SDO
V
REF
A B C D
R
FB
B
I
OUT
B
A
GND
B
R
FB
C
I
OUT
C
A
GND
C
R
FB
D
I
OUT
D
A
GND
D
AD5544
INPUT
REGISTER R
INPUT
REGISTER R
INPUT
REGISTER R
DAC B
REGISTER R
DAC C
REGISTER R
DAC D
REGISTER R
FEATURES
AD5544 16-Bit Resolution
AD5554 14-Bit Resolution
2 mA Full-Scale Current 20%, with V
REF
= 10 V
2 s Settling Time
V
SS
BIAS for Zero-Scale Error Reduction @ Temp
Midscale or Zero-Scale Reset
Four Separate 4Q Multiplying Reference Inputs
SPI-Compatible 3-Wire Interface
Double Buffered Registers Enable
Simultaneous Multichannel Change
Internal Power ON Reset
Compact SSOP-28 Package
APPLICATIONS
Automatic Test Equipment
Instrumentation
Digitally-Controlled Calibration
GENERAL DESCRIPTION
The AD5544/AD5554 quad, 16-/14-bit, current-output, digital-
to-analog converters are designed to operate from a single 5 V
supply.
The applied external reference input voltage (V
REF
) determines
the full-scale output current. Integrated feedback resistors (R
FB
)
provide temperature-tracking, full-scale voltage outputs when
combined with an external I-to-V precision amplifier.
A doubled-buffered serial-data interface offers high-speed,
3-wire, SPI- and microcontroller-compatible inputs using
serial-data-in (SDI), clock (CLK), and a chip-select (
CS
). In
addition, a serial-data-out pin (SDO) allows for daisy-chaining
when multiple packages are used. A common level-sensitive
load-DAC strobe (
LDAC
) input allows simultaneous update of
all DAC outputs from previously loaded input registers. Addi-
tionally, an internal power ON reset forces the output voltage to
zero at system turn ON. An MSB pin allows system reset asser-
tion (
RS
) to force all registers to zero code when MSB = 0, or
to half-scale code when MSB = 1.
AD5544/AD5554 are packaged in the compact SSOP-28.
57344
49152
40960
32768
24576
CODE – Decimal
16384
8192
0
65536
1.0
0.5
0.0
–0.5
–1.0
1.0
0.5
0.0
–0.5
–1.0
1.0
0.5
0.0
–0.5
–1.0
1.0
0.5
0.0
–0.5
–1.0
I
DAC A
DAC B
DAC C
DAC D
Figure 1. AD5544 INL vs. Code Plot (T
A
= 25
°
C)
相關(guān)PDF資料
PDF描述
AD5544 Quad, Current-Output Serial-Input, 16-Bit/14-Bit DACs
AD5544ARS Quad, Current-Output Serial-Input, 16-Bit/14-Bit DACs
AD5554 Quad, Current-Output Serial-Input, 16-Bit/14-Bit DACs
AD5555CRU Dual, Current-Output, Serial-Input, 16-/14-Bit DAC
AD5555CRU-REEL7 Dual, Current-Output, Serial-Input, 16-/14-Bit DAC
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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