AD9259_15 Datasheet, PDF (16/52 Pages) Analog Devices – Quad, 14-Bit, 50 MSPS Serial LVDS 1.8 V ADC

AD9259
90
85
2V p-p, SFDR
80
75
2V p-p, SNR
70
65
60
10
15
20
25
30
35
40
45
50
ENCODE (MSPS)
Figure 21. SNR/SFDR vs. Encode, fIN = 10.3 MHz, fSAMPLE = 50 MSPS
Data Sheet
100
90
f_IN = 35MHz
f_SAMPLE = 50MSPS
80
70
2V p-p, SFDR
60
50
2V p-p, SNR
40
30
20
80dB
REFERENCE
10
0
–60
–50
–40
–30
–20
–10
0
ANALOG INPUT LEVEL (dBFS)
Figure 24. SNR/SFDR vs. Analog Input Level, fIN = 35 MHz, fSAMPLE = 50 MSPS
90
85
2V p-p, SFDR
80
75
2V p-p, SNR
70
65
60
10
15
20
25
30
35
40
45
50
ENCODE (MSPS)
Figure 22. SNR/SFDR vs. Encode, fIN = 35 MHz, fSAMPLE = 50 MSPS
100
90
f_IN = 10.3MHz
f_SAMPLE = 50MSPS
80
70
2V p-p, SFDR
60
50
2V p-p, SNR
40
30
20
80dB
REFERENCE
10
0
–60
–50
–40
–30
–20
–10
0
ANALOG INPUT LEVEL (dBFS)
Figure 23. SNR/SFDR vs. Analog Input Level, fIN = 10.3 MHz, fSAMPLE = 50 MSPS
0
AIN1 AND AIN2 = –7dBFS
SFDR = 87.76dBc
–20 ^{IMD2 = 90.18dBc}
IMD3 = 87.27dBc
–40
–60
–80
–100
–120
0
5
10
15
20
25
FREQUENCY (MHz)
Figure 25. Two-Tone 32k FFT with fIN1 = 15 MHz and fIN2 = 16 MHz,
fSAMPLE = 50 MSPS
0
AIN1 AND AIN2 = –7dBFS
SFDR = 80.37dBc
–20 ^{IMD2 = 79.75dBc}
IMD3 = 84.50dBc
–40
–60
–80
–100
–120
0
5
10
15
20
25
FREQUENCY (MHz)
Figure 26. Two-Tone 32k FFT with fIN1 = 70 MHz and fIN2 = 71 MHz,
fSAMPLE = 50 MSPS
Rev. E | Page 16 of 52