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AD9680 Datasheet(PDF) 17 Page - Analog Devices

Part # AD9680
Description  Dual Analog-to-Digital Converter
PDF  99 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD9680 Datasheet(HTML) 17 Page - Analog Devices

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Data Sheet
AD9680
Rev. C | Page 15 of 97
TYPICAL PERFORMANCE CHARACTERISTICS
AD9680-1250
AVDD1 = 1.25 V, AVDD1_SR = 1.25 V, AVDD2 = 2.5 V, AVDD3 = 3.3 V, DVDD = 1.25 V, DRVDD = 1.25 V, SPIVDD = 1.8 V, 1.58 V p-p
full-scale differential input, AIN = −1.0 dBFS, default SPI settings, clock divider = 2, TA = 25°C, 128k FFT sample, unless otherwise noted.
See Table 10 for recommended settings.
–130
–110
–90
–70
–50
–30
–10
0
625.000
FREQUENCY (MHz)
AIN = –1dBFS
SNR = 64dBFS
ENOB = 10.3 BITS
SFDR = 82dBFS
BUFFER CURRENT = 3.5×
78.125
156.250 234.375 312.500 390.625 468.750 546.875
Figure 6. Single-Tone FFT with fIN = 10.3 MHz
–130
–110
–90
–70
–50
–30
–10
0
625.000
FREQUENCY (MHz)
AIN = –1dBFS
SNR = 63.4dBFS
ENOB = 10.2 BITS
SFDR = 79dBFS
BUFFER CURRENT = 3.5×
78.125
156.250 234.375 312.500 390.625 468.750 546.875
Figure 7. Single-Tone FFT with fIN = 170.3 MHz
–130
–110
–90
–70
–50
–30
–10
0
625.000
FREQUENCY (MHz)
AIN = –1dBFS
SNR = 62.8dBFS
ENOB = 10.1 BITS
SFDR = 76dBFS
BUFFER CURRENT = 3.5×
78.125
156.250 234.375 312.500 390.625 468.750 546.875
Figure 8. Single-Tone FFT with fIN = 340.3 MHz
–130
–110
–90
–70
–50
–30
–10
0
625.000
FREQUENCY (MHz)
AIN = –1dBFS
SNR = 62.5dBFS
ENOB = 9.9 BITS
SFDR = 70dBFS
BUFFER CURRENT = 3.5×
78.125
156.250 234.375 312.500 390.625 468.750 546.875
Figure 9. Single-Tone FFT with fIN = 450.3 MHz
–130
–110
–90
–70
–50
–30
–10
0
625.000
FREQUENCY (MHz)
AIN = –1dBFS
SNR = 60.9dBFS
ENOB = 9.8 BITS
SFDR = 74dBFS
BUFFER CURRENT = 5.5×
78.125
156.250 234.375 312.500 390.625 468.750 546.875
Figure 10. Single-Tone FFT with fIN = 765.3 MHz
–120
–100
–80
–60
–40
–20
0
0
625.000
FREQUENCY (MHz)
AIN = –1dBFS
SNR = 59.7dBFS
ENOB = 9.6 BITS
SFDR = 74dBFS
BUFFER CURRENT = 5.5×
78.125
156.250 234.375 312.500 390.625 468.750 546.875
Figure 11. Single-Tone FFT with fIN = 985.3 MHz



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