Rainbow Electronics MAX1127 - Manual (Page 11)

MAX1127
Quad, 12-Bit, 65Msps, 1.8V ADC with
Serial LVDS Outputs
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SIGNAL-TO-NOISE RATIO
vs. CLOCK DUTY CYCLE
CLOCK DUTY CYCLE (%)
SNR (dB)
60 40 50
65
67
63
69
71
64
66
68
70
72
62
30 70
MAX1127 toc20
f IN = 5.301935MHz
SIGNAL-TO-NOISE + DISTORTION
vs. CLOCK DUTY CYCLE
CLOCK DUTY CYCLE (%)
SINAD (dB)
60 40 50
65
67
63
69
71
64
66
68
70
72
62
30 70
MAX1127 toc21
f IN = 5.301935MHz
TOTAL HARMONIC DISTORTION
vs. CLOCK DUTY CYCLE
CLOCK DUTY CYCLE (%)
THD (dBc)
40 60 50
MAX1127 toc22
-95
-90
-100
-85
-80
-75
-105
30 70
f IN = 5.301935MHz
SPURIOUS-FREE DYNAMIC RANGE
vs. CLOCK DUTY CYCLE
CLOCK DUTY CYCLE (%)
SFDR (dBc)
40 60 50
80
85
75
90
95
100
70
30 70
MAX1127 toc23
f IN = 5.301935MHz
Typical Operating Characteristics (continued)
(AV DD = 1.8V, OV DD = 1.8V, CV DD = 1.8V, GND = 0, external V REFIO = 1.24V, INTREF = AV DD , differential input at -0.5dBFS,
f CLK = 65MHz (50% duty cycle), DT = low, C LOAD = 10pF, T A = +25°C, unless otherwise noted.)