Datasheet

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TYPICAL CHARACTERISTICS - ADS6143 (F
S
= 80 MSPS)
f − Frequency − MHz
−160
−140
−120
−100
−80
−60
−40
−20
0
0 10 20 30 40
Amplitude − dB
G037
SFDR = 89.8 dBc
SINAD = 74.5 dBFS
SNR = 74.8 dBFS
THD = 87 dBc
f − Frequency − MHz
−160
−140
−120
−100
−80
−60
−40
−20
0
0 10 20 30 40
Amplitude − dB
G038
SFDR = 83.5 dBc
SINAD = 73.4 dBFS
SNR = 74.3 dBFS
THD = 82.6 dBc
f − Frequency − MHz
−160
−140
−120
−100
−80
−60
−40
−20
0
0 10 20 30 40
Amplitude − dB
G039
SFDR = 81.2 dBc
SINAD = 70.4 dBFS
SNR = 71.4 dBFS
THD = 78 dBc
f − Frequency − MHz
−160
−140
−120
−100
−80
−60
−40
−20
0
0 10 20 30 40
Amplitude − dB
G040
f
IN
1 = 190 MHz, –7 dBFS
f
IN
2 = 185 MHz, –7 dBFS
2-Tone IMD = –84 dBFS
SFDR = –89 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
G041
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
G042
Gain = 0 dB
Gain = 3.5 dB
ADS6145, ADS6144
ADS6143, ADS6142
SLWS198B – JULY 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 70 MHz INPUT SIGNAL
Figure 45. Figure 46.
FFT for 230 MHz INPUT SIGNAL INTERMODULATION DISTORTION (IMD) vs FREQUENCY
Figure 47. Figure 48.
SFDR vs INPUT FREQUENCY SNR vs INPUT FREQUENCY
Figure 49. Figure 50.
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Product Folder Link(s): ADS6145, ADS6144 ADS6143, ADS6142