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AD9245 Datasheet(PDF) 13 Page - Analog Devices

Part # AD9245
Description  14-Bit, 20 MSPS/40 MSPS/65 MSPS/80 MSPS, 3 V A/D Converter
PDF  32 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD9245 Datasheet(HTML) 13 Page - Analog Devices

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AD9245
Rev. D | Page 13 of 32
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.
FREQUENCY (MHz)
0
5
10
15
20
25
30
35
–120
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
40
AIN = –0.5dBFS
SNR = 73.2dBc
ENOB = 11.8 BITS
SFDR = 92.8dBc
Figure 8. Single Tone 8K FFT @ 2.5 MHz
FREQUENCY (MHz)
0
5
10
15
20
25
30
35
–120
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
40
AIN = –0.5dBFS
SNR = 72.7dBc
ENOB = 11.8 BITS
SFDR = 87.6dBc
Figure 9. Single Tone 8K FFT @ 39 MHz
FREQUENCY (MHz)
0
5
10
15
20
25
30
35
–120
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
40
AIN = –0.5dBFS
SNR = 71.7dBc
ENOB = 11.5 BITS
SFDR = 81.6dBc
Figure 10. Single Tone 8K FFT @ 70 MHz
INPUT AMPLITUDE (dBFS)
–30
–25
–20
–15
–10
–5
40
50
60
70
80
90
100
0
SFDR (dBFS)
SNR (dBc)
SFDR = 90dBc
REFERENCE LINE
SFDR (dBc)
SNR (dBFS)
Figure 11. Single Tone SNR/SFDR vs. Input Amplitude (AIN) @ 2.5 MHz
INPUT AMPLITUDE (dBFS)
–30
–25
–20
–15
–10
–5
40
50
60
70
80
90
100
0
SFDR (dBFS)
SNR (dBc)
SFDR = 90dBc
REFERENCE LINE
SFDR (dBc)
SNR (dBFS)
Figure 12. Single Tone SNR/SFDR vs. Input Amplitude (AIN) @ 39 MHz
SAMPLE RATE (MSPS)
0
2040
6080
50
60
70
80
90
100
100
SFDR (DIFF)
SFDR (SE)
SNR (DIFF)
SNR (SE)
Figure 13. SNR/SFDR vs. Sample Rate @ 40 MHz



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