Current Output/Serial Input,
16-/14-Bit DACs
AD5543/AD5553
Data Sheet
FEATURES
FUNCTIONAL BLOCK DIAGRAM
16-bit resolution AD5543
14-bit resolution AD5553
±1 LSB DNL
±1 LSB INL
Low noise: 12 nV/√Hz
Low power: IDD = 10 µA
0.5 µs settling time
4-quadrant multiplying reference input
2 mA full-scale current ± 20%, with VREF = 10 V
Built-in RFB facilitates voltage conversion
3-wire interface
Ultracompact 8-lead MSOP and 8-lead SOIC packages
AD5543/AD5553
RFB
VDD
VREF
IOUT
DAC
16 OR 14
DAC
REGISTER
CONTROL
LOGIC
CS
16 OR 14
CLK
GND
APPLICATIONS
02917-001
16-BIT/14-BIT SHIFT
REGISTER
SDI
Figure 1.
Automatic test equipment
Instrumentation
Digitally controlled calibration
Industrial control programmable logic controllers
1.0
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
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 operational amplifier.
65,536
CODE
A serial data interface offers high speed, 3-wire microcontrollercompatible inputs using serial data in (SDI), clock (CLK), and
chip select (CS).
02917-002
57,344
61,440
53,248
45,056
49,152
36,864
40,960
32,768
24,575
28,672
16,384
20,480
8152
12,288
–1.0
0
–0.8
4096
The AD5543/AD5553 are precision 16-/14-bit, low power,
current output, small form factor digital-to-analog converters
(DACs). They are designed to operate from a single 5 V supply
with a ±10 V multiplying reference.
INL (LSB)
GENERAL DESCRIPTION
Figure 2. Integral Nonlinearity (INL)
2
The AD5543/AD5553 are packaged in ultracompact (3 mm ×
4.7 mm) 8-lead MSOP and 8-lead SOIC packages.
0
–2
GAIN (dB)
–4
–6
–8
–10
–14
10k
100k
1M
10M
FREQUENCY (Hz)
100M
02917-025
–12
Figure 3. Reference Multiplying Bandwidth
Rev. G
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