Datasheet

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TYPICAL CHARACTERISTICS - ADS6122 (F
S
= 65 MSPS)
f − Frequency − MHz
−160
−140
−120
−100
−80
−60
−40
−20
0
0 10 20 30
Amplitude − dB
G055
SFDR = 91.8 dBc
SINAD = 71.1 dBFS
SNR = 71.8 dBFS
THD = 89.8 dBc
f − Frequency − MHz
−160
−140
−120
−100
−80
−60
−40
−20
0
0 10 20 30
Amplitude − dB
G056
SFDR = 83 dBc
SINAD = 71.1 dBFS
SNR = 71.6 dBFS
THD = 82.3 dBc
f − Frequency − MHz
−160
−140
−120
−100
−80
−60
−40
−20
0
0 10 20 30
Amplitude − dB
G057
SFDR = 82.8 dBc
SINAD = 69.5 dBFS
SNR = 70.1 dBFS
THD = 79.6 dBc
f − Frequency − MHz
−160
−140
−120
−100
−80
−60
−40
−20
0
0 10 20 30
Amplitude − dB
G058
f
IN
1 = 190.1 MHz, –7 dBFS
f
IN
2 = 185.3 MHz, –7 dBFS
2-Tone IMD = –88.5 dBFS
SFDR = –91.9 dBFS
f
IN
− Input Frequency − MHz
60
64
68
72
76
80
84
88
92
96
100
0 50 100 150 200 250 300 350 400 450 500
SFDR − dBc
G059
Gain = 0 dB
Gain = 3.5 dB
f
IN
− Input Frequency − MHz
62
64
66
68
70
72
74
76
0 50 100 150 200 250 300 350 400 450 500
SNR − dBFS
G060
Gain = 0 dB
Gain = 3.5 dB
ADS6125, ADS6124
ADS6123, ADS6122
SLAS560A – OCTOBER 2007 – REVISED MARCH 2008
All plots are at 25 ° C, AVDD = DRVDD = 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, CMOS output
interface (unless otherwise noted)
FFT for 20 MHz INPUT SIGNAL FFT for 90 MHz INPUT SIGNAL
Figure 61. Figure 62.
FFT for 230 MHz INPUT SIGNAL INTERMODULATION DISTORTION (IMD) vs FREQUENCY
Figure 63. Figure 64.
SFDR vs INPUT FREQUENCY SNR vs INPUT FREQUENCY
Figure 65. Figure 66.
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Product Folder Link(s): ADS6125, ADS6124 ADS6123, ADS6122