Rainbow Electronics MAX1444 User Manual
Page 12
MAX1444
10-Bit, 40Msps, +3.0V, Low-Power
ADC with Internal Reference
12
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60
65
80
75
70
85
90
20
40
30
50
60
70
CLOCK DUTY CYCLE (%)
SFDR (dBc)
f
IN
= 13.24MHz AT-0.5dB FS
Figure 3a. Spurious-Free Dynamic Range vs. Clock Duty Cycle
(Differential Input)
56
57
59
58
60
61
20
40
30
50
60
70
CLOCK DUTY CYCLE (%)
SNR (dB)
f
IN
= 13.24MHz AT-0.5dB FS
Figure 3b. Signal-to-Noise Ratio vs. Clock Duty Cycle
(Differential Input)
-80
-76
-68
-72
-64
-60
20
40
30
50
60
70
CLOCK DUTY CYCLE (%)
THD (dBc)
f
IN
= 13.24MHz AT-0.5dB FS
Figure 4a. Total Harmonic Distortion vs. Clock Duty Cycle
(Differential Input)
61
60
59
58
57
20
40
30
50
60
70
CLOCK DUTY CYCLE (%)
SINAD (dB)
f
IN
= 13.24MHz AT-0.5dB FS
Figure 4b. Signal-to-Noise Plus Distortion vs. Clock Duty Cycle
(Differential Input)
OUTPUT
DATA D9–D0
OE
t
DISABLE
t
ENABLE
HIGH-Z
HIGH-Z
VALID DATA
Figure 5. Output Enable Timing