Datasheet

AD5383 Data Sheet
Rev. C | Page 20 of 40
03734-021
CURRENT (mA)
–40 –20 –10 –
5 –
2
0 2
5 10
20
40
V
OUT
(V)
–1
6
4
3
2
5
1
0
ZERO-SCALE
1/4 SCALE
MIDSCALE
3/4 SCALE
FULL-SCALE
AV
DD
= DV
DD
= 5V
V
REF
= 2.5V
T
A
= 25°
C
Figure 21. AD5383-5 Output Amplifier Source and Sink Capability
03734-022
I
SOURCE
/I
SINK
(mA)
2.000 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
AV
DD
= 5V
V
REF
= 2.5V
T
A
= 25°
C
ERROR AT ZERO SINKING CURRENT
(V
DD
–
V
OUT
) AT FULL-SCALE SOURCING CURRENT
Figure 22. Headroom at Rails vs. Source/Sink Current
03734-023
FREQUENCY (Hz)
100k100 1k 10k
OUTPUT NOISE (nV/ Hz)
0
600
500
400
300
200
100
AV
DD
= 5V
T
A
= 25°C
REFOUT DECOUPLED
WITH 100nF CAPACITOR
REFOUT = 2.5V
REFOUT = 1.25V
Figure 23. REFOUT Noise Spectral Density
03734-024
CURRENT (mA)
–40 –20 –10 –5 –2 0 2
5 10
20 40
V
OUT
(V)
–1
6
4
3
2
5
1
0
ZERO-SCALE
1/4 SCALE
MIDSCALE
3/4 SCALE
FULL-SCALE
AV
DD
= DV
DD
= 3V
V
REF
= 1.25V
T
A
= 25°C
Figure 24. AD5383-3 Output Amplifier Source and Sink Capability
03734-025
SAMPLE NUMBER
5500 100 150 200 250 30050 350 400 500450
AMPLITUDE (V)
2.449
2.456
2.455
2.454
2.453
2.452
2.451
2.450
AV
DD
= DV
DD
= 5V
V
REF
= 2.5V
T
A
= 25°C
14ns/SAMPLE NUMBER
Figure 25. Adjacent Channel DAC-to-DAC Crosstalk
AV
DD
= DV
DD
= 5V
V
REF
= 2.5V
T
A
= 25°C
EXITS SOFT PD
TO MIDSCALE
03734-026
AV
DD
= DV
DD
= 5V
T
A
= 25°
C
DAC LOADED WITH MIDSCALE
EXTERNAL REFERENCE
Y AXIS = 5µ
V/DIV
X AXIS = 100ms/DIV
Figure 26. 0.1 Hz to 10 Hz Noise Plot