Datasheet

AD5444/AD5446 Data Sheet
Rev. E | Page 12 of 28
–120
–100
–80
–60
–40
–20
0
0 500k
T
A
= 25°C
V
DD
= 5V
V
REF
= 3.5V
AD8038 AMP
FREQUENCY (Hz)
400k300k200k100k
SFDR (dB)
04588-063
Figure 30. Wideband SFDR , f
OUT
= 20 kHz, Clock = 1 MHz
–120
–100
–80
–60
–40
–20
0
0 500k
T
A
= 25
°C
V
DD
= 5V
V
REF
= 3.5V
AD8038
AMP
FREQUENCY (Hz)
400k300k200k100k
SFDR (dB)
04588-064
Figure 31. Wideband SFDR, f
OUT
= 50 kHz, Clock = 1 MHz
–120
–100
–80
–60
–40
–20
0
10k 30k
T
A
= 25°C
V
DD
= 5V
V
REF
= 3.5V
AD8038 AMP
FREQUENCY (Hz)
25k20k15k
SFDR (dB)
04588-065
Figure 32. Narrow-Band SFDR, f
OUT
= 20 kHz, Clock = 1 MHz
–120
–100
–80
–60
–40
–20
0
30k 70k
T
A
= 25°C
V
DD
= 5V
V
REF
= 3.5V
AD8038 AMP
FREQUENCY (Hz)
60k50k40k
SFDR (dB)
04588-066
Figure 33. Narrow-Band SFDR, f
OUT
= 50 kHz, Clock = 1 MHz