Current Output/
a
Serial Input, 16-/14-Bit DAC
AD5543/AD5553
FEATURES
FUNCTIONAL BLOCK DIAGRAM
16-Bit Resolution AD5543
14-Bit Resolution AD5553
ꢀ1 LSB DNL
AD5543/AD5553
R
FB
V
ꢀ2 LSB INL for AD5543
DD
ꢀ1 LSB INL for AD5553
Low Noise 12 nV/√Hz
Low Power, IDD = 10 ꢁA
D/A
CONVERTER
I
V
OUT
REF
16 OR 14
0.5 ꢁs Settling Time
4Q Multiplying Reference-Input
2 mA Full-Scale Current ꢀ 20%, with VREF = 10 V
Built-in RFB Facilitates Voltage Conversion
3-Wire Interface
CONTROL
LOGIC
DAC
REGISTER
CS
16 OR 14
CLK
SDI
GND
Ultracompact MSOP-8 and SOIC-8 Packages
16-/14-BIT SHIFT
REGISTER
APPLICATIONS
Automatic Test Equipment
Instrumentation
Digitally Controlled Calibration
Industrial Control PLCs
1.0
0.8
0.6
GENERAL DESCRIPTION
0.4
The AD5543/AD5553 are precision 16-/14-bit, low power,
current output, small form factor digital-to-analog converters.
They are designed to operate from a single 5 V supply with a
10 V multiplying reference.
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
The applied external reference VREF determines the full-scale
output current. An internal feedback resistor (RFB) facilitates the
R-2R and temperature tracking for voltage conversion when
combined with an external op amp.
A serial-data interface offers high speed, 3-wire microcontroller
compatible inputs using serial data in (SDI), clock (CLK), and
chip select (CS).
CODE
Figure 1. Integral Nonlinearity Error
The AD5543/AD5553 are packaged in ultracompact
(3 mm ꢀ 4.7 mm) MSOP-8 and SOIC-8 packages.
REF LEVEL /DIV
0.000dB 12.000dB
MARKER 4 311 677.200Hz
MAG (A/R) –2.939dB
FFFFH
8000H
4000H
2000H
1000H
0800H
0400H
0200H
0100H
0080H
0040H
0020H
0010H
0008H
0004H
0002H
0001H
0000H
10
100
1k
10k
100k
1M
10M
REV. A
START 10.000Hz
STOP 50 000 000.000Hz
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Figure 2. Reference Multiplying Bandwidth
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