AD9245 Ver la hoja de datos (PDF) - Analog Devices
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AD9245 Datasheet PDF : 32 Pages
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AD9245
TYPICAL PERFORMANCE CHARACTERISTICS
DUT = AD9245-80, AVDD = 3.0 V, DRVDD = 2.5 V, maximum sample rate, DCS disabled, TA = 25°C, 2 V p-p differential input,
AIN = −0.5 dBFS, VREF = 1.0 V external, unless otherwise noted.
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
0
AIN = –0.5dBFS
SNR = 73.2dBc
ENOB = 11.8 BITS
SFDR = 92.8dBc
5
10
15
20
25
30
35
40
FREQUENCY (MHz)
Figure 8. Single Tone 8K FFT @ 2.5 MHz
100
SFDR (dBFS)
90
SFDR (dBc)
80
SNR (dBFS)
70
SFDR = 90dBc
REFERENCE LINE
60
SNR (dBc)
50
40
–30
–25
–20
–15
–10
–5
0
INPUT AMPLITUDE (dBFS)
Figure 11. Single Tone SNR/SFDR vs. Input Amplitude (AIN) @ 2.5 MHz
0
AIN = –0.5dBFS
–10 SNR = 72.7dBc
ENOB = 11.8 BITS
–20 SFDR = 87.6dBc
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
0
5
10
15
20
25
30
35
40
FREQUENCY (MHz)
Figure 9. Single Tone 8K FFT @ 39 MHz
100
SFDR (dBFS)
90
SFDR (dBc)
80
SNR (dBFS)
70
SFDR = 90dBc
REFERENCE LINE
60
SNR (dBc)
50
40
–30
–25
–20
–15
–10
–5
0
INPUT AMPLITUDE (dBFS)
Figure 12. Single Tone SNR/SFDR vs. Input Amplitude (AIN) @ 39 MHz
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
0
AIN = –0.5dBFS
SNR = 71.7dBc
ENOB = 11.5 BITS
SFDR = 81.6dBc
5
10
15
20
25
30
35
40
FREQUENCY (MHz)
Figure 10. Single Tone 8K FFT @ 70 MHz
100
SFDR (DIFF)
90
SFDR (SE)
80
SNR (DIFF)
70
SNR (SE)
60
50
0
20
40
60
80
100
SAMPLE RATE (MSPS)
Figure 13. SNR/SFDR vs. Sample Rate @ 40 MHz
Rev. D | Page 13 of 32
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