Data Sheet
AD5629R/AD5669R
Rev. D | Page 17 of 32
0.0010
–0.0015
–0.0010
–0.0005
0
0.0005
09
8
7
6
5
4
3
2
1
G
L
IT
CH
AM
P
L
IT
UDE
(V
)
TIME (s)
VDD = 5V
EXT REF = 5V
TA = 25°C
08
81
9-
14
2
Figure 36. Analog Crosstalk
0.0020
–0.0015
–0.0010
–0.0005
0
0.0010
0.0015
0.0005
08
7
6
5
4
3
2
1
G
L
IT
CH
AM
P
L
IT
UDE
(V
)
TIME (s)
VDD = 5V
EXT REF = 5V
TA = 25°C
08
81
9-
14
3
Figure 37. DAC-to-DAC Crosstalk
6
–8
–6
–4
–2
2
4
0
010
89
7
6
5
4
3
2
1
OU
TP
U
T
V
O
LTA
GE
(
V
)
TIME (s)
VDD = 5.5V
EXT REF = 5V
DAC CODE = 0xFF00
0881
9-
144
Figure 38. 0.1 Hz to 10 Hz Output Noise Plot, External Reference
20
–20
–15
–10
–5
0
10
15
5
010
89
7
6
5
4
3
2
1
O
U
T
P
UT
NO
IS
E
(
V
)
TIME (s)
EXT REF = 2.5V
DAC CODE = 0xFF00
0881
9-
145
Figure 39. 0.1 Hz to 10 Hz Output Noise Plot, Internal Reference
20
–20
–15
–10
–5
0
10
15
5
010
89
7
6
5
4
3
2
1
O
U
T
P
UT
NO
IS
E
(
V
)
TIME (s)
INT REF = 1.25V
DAC CODE = 0xFF00
0881
9-
146
Figure 40. 0.1 Hz to 10 Hz Output Noise Plot, Internal Reference
800
0
100
200
300
400
600
700
500
100
1M
100k
10k
1k
OU
T
P
U
T
N
OIS
E
(n
V
/
H
z
)
FREQUENCY (Hz)
VREF = 1.25V
VREF = 2.5V
VDD = 5.5V
DAC CODE = 0x8400
08
81
9-
14
7
Figure 41. Noise Spectral Density, Internal Reference