AD5382
Data Sheet
Rev. C | Page 20 of 40
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ISOURCE/ISINK (mA)
2.00
0
0.25
0.50
0.75
1.00
1.25
1.50
1.75
ERROR
VOLTAGE
(V)
–0.20
0.20
0.10
0.05
0.15
0
–0.05
–0.10
–0.15
AVDD = 5V
VREF = 2.5V
TA = 25°C
ERROR AT ZERO SINKING CURRENT
(VDD–VOUT) AT FULL-SCALE SOURCING CURRENT
Figure 21. Headroom at Rails vs. Source/Sink Current
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FREQUENCY (Hz)
100k
100
1k
10k
OUTPUT
NOISE
(nV/
Hz)
0
600
500
400
300
200
100
AVDD = 5V
TA = 25°C
REFOUT DECOUPLED
WITH 100nF CAPACITOR
REFOUT = 2.5V
REFOUT = 1.25V
Figure 22 REFOUT Noise Spectral Density
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CURRENT (mA)
–40
–20
–10
–5
–2
0
2
5
10
20
–40
VO
U
T
(V)
–1
6
4
3
2
5
1
0
ZERO SCALE
1/4 SCALE
MIDSCALE
3/4 SCALE
FULL SCALE
AVDD = DVDD = 3V
VREF = 1.25V
TA = 25°C
Figure 23. AD5382-3 Output Amplifier Source and Sink Capability
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SAMPLE NUMBER
550
0
100
150
200
250
300
50
350
400
500
450
AMPLITUDE
(V)
2.449
2.456
2.455
2.454
2.453
2.452
2.451
2.450
AVDD = DVDD = 5V
VREF = 2.5V
TA = 25°C
14ns/SAMPLE NUMBER
Figure 24. Adjacent Channel DAC-to-DAC Crosstalk
AVDD = DVDD = 5V
VREF = 2.5V
TA = 25°C
EXITS SOFT PD
TO MIDSCALE
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AVDD = DVDD = 5V
TA = 25°C
DAC LOADED WITH MIDSCALE
EXTERNAL REFERENCE
Y AXIS = 5
V/DIV
X AXIS = 100ms/DIV
Figure 25. 0.1 Hz to 10 Hz Noise Plot