Datasheet

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TYPICAL CHARACTERISTICS - ADS6242 (F
s
= 65 MSPS)
f − Frequency − MHz
−160
−140
−120
−100
−80
−60
−40
−20
0
0 10 20 30
Amplitude − dB
G055
SFDR = 92.4 dBc
SINAD = 74.3 dBFS
SNR = 74.5 dBFS
THD = 90 dBc
f − Frequency − MHz
−160
−140
−120
−100
−80
−60
−40
−20
0
0 10 20 30
Amplitude − dB
G056
SFDR = 88.8 dBc
SINAD = 73.6 dBFS
SNR = 73.9 dBFS
THD = 86.6 dBc
f − Frequency − MHz
−160
−140
−120
−100
−80
−60
−40
−20
0
0 10 20 30
Amplitude − dB
G057
SFDR = 82.1 dBc
SINAD = 69.3 dBFS
SNR = 69.7 dBFS
THD = 81.2 dBc
f − Frequency − MHz
−160
−140
−120
−100
−80
−60
−40
−20
0
0 10 20 30
Amplitude − dB
G058
f
IN
1 = 185.1 MHz, –7 dBFS
f
IN
2 = 190.1 MHz, –7 dBFS
2-Tone IMD = –96 dBFS
SFDR = –86 dBFS
f
IN
− Input Frequency − MHz
76
78
80
82
84
86
88
90
92
94
96
0 50 100 150 200 250
SFDR − dBc
G059
Gain = 0 dB
Gain = 3.5 dB
f
IN
− Input Frequency − MHz
67
68
69
70
71
72
73
74
75
76
0 50 100 150 200 250
SNR − dBFS
G060
Gain = 0 dB
Gain = 3.5 dB
ADS6245 , ADS6244
ADS6243 , ADS6242
SLAS542A – MAY 2007 – REVISED JULY 2007
All plots are at 25 ° C, AVDD = LVDD = 3.3 V, maximum rated sampling frequency, sine wave input clock, 1.5 V
PP
differential
clock amplitude, 50% clock duty cycle, – 1 dBFS differential analog input, internal reference mode, 0 dB gain (unless
otherwise noted)
FFT for 10 MHz INPUT SIGNAL FFT for 100 MHz INPUT SIGNAL
Figure 60. Figure 61.
FFT for 230 MHz INPUT SIGNAL INTERMODULATION DISTORTION (IMD) vs FREQUENCY
Figure 62. Figure 63.
SFDR vs INPUT FREQUENCY SNR vs INPUT FREQUENCY
Figure 64. Figure 65.
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