Datasheet

AD5625R/AD5645R/AD5665R, AD5625/AD5665 Data Sheet
Rev. C | Page 20 of 36
Figure 51. Noise Spectral Density, Internal Reference
Figure 52. Total Harmonic Distortion
Figure 53. Settling Time vs. Capacitive Load
Figure 54. Multiplying Bandwidth
FREQUENCY (Hz)
OUTPUT NOISE (nV/√Hz)
800
0
100
200
300
400
500
600
700
100 10k1k 100k 1M
V
DD
= 3V
V
REFOUT
= 1.25V
V
DD
= 5V
V
REFOUT
= 2.5V
T
A
= 25°C
MIDSCALE LOADED
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FREQUENCY (Hz)
THD (dB)
–20
–50
–80
–30
–40
–60
–70
–90
–100
2k 4k 6k 8k 10k
V
DD
= 5V
T
A
= 25°C
DAC LOADED WITH FULL SCALE
V
REF
= 2V ± 0.3V p-p
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CAPACITANCE (nF)
TIME (µs)
16
14
12
10
8
6
4
0 1 2 3 4 5 6 7 98 10
V
REF
= V
DD
T
A
= 25°C
V
DD
=
5V
V
DD
=
3V
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FREQUENCY (Hz)
BANDWIDTH (dB)
5
–40
10k 100k
1M 10M
–
35
–
30
–
25
–
20
–15
–10
–
5
0
V
DD
= 5V
T
A
= 25°C
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