AD9629 Analog Devices, AD9629 Datasheet - Page 15

• Manufacturer Part Number: AD9629
• Description: 12-Bit, 20/40/65/80 MSPS, 1.8 V Analog-to-Digital Converter
• Manufacturer: Analog Devices

Specifications of AD9629

• Resolution (bits): 12bit
• # Chan: 1
• Sample Rate: 80MSPS
• Interface: Par
• Analog Input Type: Diff-Uni
• Ain Range: 2 V p-p
• Adc Architecture: Pipelined
• Pkg Type: CSP

AD9629-20
AVDD = 1.8 V; DRVDD = 1.8 V, maximum sample rate, 2 V p-p differential input, 1.0 V internal reference; AIN = −1.0 dBFS, 50% duty
cycle clock, unless otherwise noted.
–105
–120
–135
–105
–120
–135
–15
–30
–45
–60
–75
–90
–15
–30
–45
–60
–75
–90
Figure 24. AD9629-20 Single-Tone FFT with f
0
Figure 23. AD9629-20 Single-Tone FFT with f
0
0
0
20MSPS
9.7MHz @ –1dBFS
SNR = 70.3dB (71.3dBFS)
SFDR = 94.1dBc
0.95
20MSPS
30.6MHz @ –1dBFS
SNR = 70.2dB (71.2dBFS)
SFDR = 94.6dBc
0.95
2
2
4
+
1.90 2.85 3.80 4.75 5.70 6.65 7.60 8.55 9.50
1.90 2.85 3.80 4.75 5.70 6.65 7.60 8.55 9.50
6
4
FREQUENCY (MHz)
FREQUENCY (MHz)
6
+
5
IN
IN
= 30.6 MHz
= 9.7 MHz
3
5
3
Rev. 0 | Page 15 of 32
Figure 25. AD9629-20 SNR/SFDR vs. Input Amplitude (AIN) with f
120
100
80
60
40
20
0
–70
–60
–50
SFDRFS
SNRFS
INPUT AMPLITUDE (dBc)
SFDR
SNR
–40
–30
–20
–10
AD9629
IN
= 9.7 MHz
0