Datasheet

AD5450/AD5451/AD5452/AD5453 Data Sheet
Rev. G | Page 14 of 28
–100
–90
–80
–60
–40
–20
0
10k 35k
FREQUENCY (Hz)
30k25k20k15k
IMD (dB)
04587-089
–70
–50
–30
–10
T
A
= 25°C
V
REF
= 3.5V
AD8038 AMPLIFIER
Figure 40. Narrow-Band IMD, f
OUT
= 20 kHz, 25 kHz, Clock = 1 MHz
–100
–90
–80
–60
–40
–20
0
0 500k
T
A
= 25°C
V
REF
= 3.5V
AD8038 AMPLIFIER
FREQUENCY (Hz)
400k300k200k100k
IMD (dB)
04587-090
–70
–50
–30
–10
Figure 41. Wideband IMD, f
OUT
= 20 kHz, 25 kHz, Clock = 1 MHz
04587-091
100 1k 10k 100k 1M
FREQUENCY (Hz)
80
0
70
50
60
40
20
30
10
FULL SCALE
LOADED TO DAC
MIDSCALE
LOADED TO DAC
ZERO SCALE
LOADED TO DAC
OUTPUT NOISE (nV/ Hz)
T
A
= 25°C
AD8038 AMPLIFIER
Figure 42. Output Noise Spectral Density