AD9628 Analog Devices, AD9628 Datasheet - Page 22

• Manufacturer Part Number: AD9628
• Description: 12-Bit, 125/105 MSPS, 1.8 V Dual Analog-to-Digital Converter
• Manufacturer: Analog Devices

Specifications of AD9628

• Resolution (bits): 12bit
• # Chan: 2
• Sample Rate: 125MSPS
• Interface: LVDS,Par
• Analog Input Type: Diff-Bip,SE-Uni
• Ain Range: 2 V p-p
• Adc Architecture: Pipelined
• Pkg Type: CSP

AD9628
AD9628-105
AVDD = 1.8 V, DRVDD = 1.8 V, maximum sample rate, VIN = −1.0 dBFS differential input, 1.0 V internal reference, and DCS enabled, unless
otherwise noted.
–120
–100
–100
–120
–100
–120
–20
–40
–60
–80
–20
–40
–60
–80
–20
–40
–60
–80
0
0
0
0
0
0
105MSPS
70.1MHz AT –1dBFS
SNR = 70.3dB (71.3dBFS)
SFDR = 95dBc
105MSPS
30.5MHz AT –1dBFS
SNR = 70.7dB (71.7dBFS)
SFDR = 90.6dBc
Figure 24. Single-Tone FFT with f
Figure 25. Single-Tone FFT with f
Figure 23. Single-Tone FFT with f
10
10
10
FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
20
20
20
30
30
30
105MSPS
9.7MHz AT –1dBFS
SNR = 70.8dB (71.8dBFS)
SFDR = 94dBc
IN
IN
IN
= 30.5 MHz
= 70.1 MHz
= 9.7 MHz
40
40
40
50
50
50
Rev. 0 | Page 22 of 44
100
Figure 28. SNR/SFDR vs. Input Frequency (AIN) with 2 V p-p Full Scale
–100
–120
95
90
85
80
75
70
65
60
55
50
–100
–120
–20
–40
–60
–80
–20
–40
–60
–80
0
0
0
0
0
Figure 26. Single-Tone FFT with f
Figure 27. Single-Tone FFT with f
50
10
10
ANALOG INPUT FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
100
20
20
SNRFS AT 25°C
30
30
150
105MSPS
100.5MHz AT –1dBFS
SNR = 70.2dB (71.2dBFS)
SFDR = 90.6dBc
105MSPS
200.5MHz AT –1dBFS
SNR = 68.7dB (69.7dBFS)
SFDR = 81dBc
IN
IN
SFDR AT 25°C
= 100.5 MHz
= 200.5 MHz
40
40
200
50
50
250