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AD9689-2000EBZ Datasheet(PDF) 22 Page - Analog Devices

Part # AD9689-2000EBZ
Description  Dual Analog-to-Digital Converter
PDF  134 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD9689-2000EBZ Datasheet(HTML) 22 Page - Analog Devices

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AD9689
Data Sheet
Rev. A | Page 22 of 134
0
–120
–90
–60
–45
–30
–15
1.05G
0
900M
750M
600M
450M
300M
150M
fIN (Hz)
–105
–75
1.20G
AIN = –2dBFS
SNRFS = 58.0dB
SFDR = 64dBFS
ENOB = 9.1 BITS
NSD = –149.0dBFS/Hz
BUFFER CURRENT = 700µA
Figure 42. Single-Tone FFT at fIN = 3300 MHz
0
–120
–90
–60
–45
–30
–15
1.05G
0
900M
750M
600M
450M
300M
150M
fIN (Hz)
–105
–75
1.20G
AIN = –2dBFS
SNRFS = 54.0dB
SFDR = 60dBFS
ENOB = 8.2 BITS
NSD = –145.1dBFS/Hz
BUFFER CURRENT = 700µA
Figure 43. Single-Tone FFT at fIN = 4350 MHz; Full-Scale Voltage = 1.1 V p-p
0
1.05G
900M
750M
600M
450M
300M
150M
fIN (Hz)
0
–120
–90
–60
–45
–30
–15
–105
–75
1.20G
AIN = –2dBFS
SNRFS = 53.0dB
SFDR = 59dBFS
ENOB = 7.9 BITS
NSD = –144.1dBFS/Hz
BUFFER CURRENT = 700µA
Figure 44. Single-Tone FFT at fIN = 5400 MHz; Full-Scale Voltage = 1.1 V p-p
30
35
40
45
50
55
60
65
70
75
80
INPUT FREQUENCY (MHz)
300µA, SFDR
300µA, SNR
500µA, SFDR
500µA, SNR
700µA, SFDR
700µA, SNR
Figure 45. SNR/SFDR vs. Input Frequency (fIN) for Various Buffer Currents
INPUT FREQUENCY (MHz)
–80
–75
–70
–65
–60
–55
–50
–45
300µA
500µA
700µA
Figure 46. Second Harmonics (HD2) vs. Input Frequency (fIN) for Various
Buffer Currents
–90
–85
–80
–75
–70
–65
–60
–55
–50
–45
–40
INPUT FREQUENCY (MHz)
300µA
500µA
700µA
Figure 47. Third Harmonics (HD3) vs. Input Frequency (fIN) for Various Buffer
Currents



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