Datasheet

60
64
68
72
76
80
84
88
92
96
100
−40 −15 10 35 60 85
Temperature (°C)
SFDR (dBc)
1.65
1.7
1.75
1.8
1.85
1.9
1.95
Input Frequency = 150MHz
69
70
71
72
73
74
75
−40 −15 10 35 60 85
Temperature (°C)
SNR (dBFS)
1.65
1.7
1.75
1.8
1.85
1.9
1.95
Input Frequency = 150MHz
1.65 1.7 1.75 1.8 1.85 1.9 1.95
78
80
82
84
86
88
90
70
70.5
71
71.5
72
72.5
73
DRVDD Supply (V)
SFDR (dBc)
SNR (dBFS)
SNR
SFDR
Input Frequency =150MHz
0 0.5 1 1.5 2 2.5 3 3.5 4
80
81
82
83
84
85
86
87
88
89
90
66
67
68
69
70
71
72
73
74
75
76
Differential Clock Amplitude (V
PP
)
SFDR (dBc)
SNR (dBFS)
SFDR
SNR
Input Frequency = 40MHz
ADS4122, ADS4125
ADS4142, ADS4145
SBAS520A –FEBRUARY 2011– REVISED MARCH 2011 www.ti.com
TYPICAL CHARACTERISTICS: ADS4145 (continued)
At +25°C, AVDD = 1.8V, DRVDD = 1.8V, maximum rated sampling frequency, sine wave input clock, 1.5V
PP
differential clock
amplitude, 50% clock duty cycle, –1dBFS differential analog input, 0dB gain, low-latency mode, DDR LVDS output interface,
and 32k-point FFT, unless otherwise noted.
SFDR ACROSS TEMPERATURE vs AVDD SUPPLY SNR ACROSS TEMPERATURE vs AVDD SUPPLY
Figure 83. Figure 84.
PERFORMANCE ACROSS DRVDD SUPPLY VOLTAGE PERFORMANCE ACROSS INPUT CLOCK AMPLITUDE
Figure 85. Figure 86.
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Product Folder Link(s): ADS4122 ADS4125 ADS4142 ADS4145