Datasheet

AD5666
Rev. D | Page 16 of 28
SAMPLE
V
OUT
(V)
2.5000
2.4950
0 512
05298-035
2.4955
2.4960
2.4965
2.4970
2.4975
2.4980
2.4985
2.4990
2.4995
64 128 192 256 320 384 448
V
DD
=5V
V
REFOUT
=2.5V
T
A
= 25°C
4ns/SAMPLE NUMBER
Figure 30. Analog Crosstalk
SAMPLE
V
OUT
(V)
2.4900
2.4855
0 512
05298-036
64 128 192 256 320 384 448
2.4860
2.4865
2.4870
2.4875
2.4880
2.4885
2.4890
2.4895
V
DD
=5V
V
REFOUT
=2.5V
T
A
= 25°C
4ns/SAMPLE NUMBER
Figure 31. DAC-to-DAC Crosstalk
05298-037
1
YAXIS=2μV/DIV
X AXIS = 4s/DIV
V
DD
=V
REF
=5V
T
A
=25°C
DAC LOADED WITH MIDSCALE
Figure 32. 0.1 Hz to 10 Hz Output Noise Plot, External Reference
5s/DIV
10μV/DIV
1
05298-038
V
DD
=5V
V
REFOUT
=2.5V
T
A
=25°C
DAC LOADED WITH MIDSCALE
Figure 33. 0.1 Hz to 10 Hz Output Noise Plot, Internal Reference
4s/DIV
5μV/DIV
1
05298-039
V
DD
=3V
V
REFOUT
= 1.25V
T
A
=25°C
DAC LOADED WITH MIDSCALE
Figure 34. 0.1 Hz to 10 Hz Output Noise Plot, Internal Reference
FREQUENCY (Hz)
OUTPUT NOISE (nV/

Hz)
800
0
100
200
300
400
500
600
700
100 100001000 100000 1000000
05298-040
V
DD
=3V
V
REFOUT
= 1.25V
V
DD
=5V
V
REFOUT
=2.5V
T
A
=25°C
MIDSCALE LOADED
Figure 35. Noise Spectral Density, Internal Reference