AD9640 Analog Devices, AD9640 Datasheet - Page 23

• Manufacturer Part Number: AD9640
• Description: 14-Bit, 80/105/125/150 MSPS, 1.8 V Dual Analog-to-Digital Converter
• Manufacturer: Analog Devices

Specifications of AD9640

• Resolution (bits): 14bit
• # Chan: 2
• Sample Rate: 150MSPS
• Interface: Par
• Analog Input Type: Diff-Uni
• Ain Range: 1 V p-p,2 V p-p
• Adc Architecture: Pipelined
• Pkg Type: CSP

Figure 36. AD9640-150 Two-Tone FFT with f
Figure 34. AD9640-150 Two-Tone SFDR/IMD3 vs. Input Amplitude (A
–100
–120
–100
–120
–100
–120
–20
–40
–60
–80
–20
–40
–60
–80
–20
–40
–60
–80
0
0
0
–90
0
0
with f
Figure 35. AD9640-125, Two 64 k WCDMA Carriers
IMD3 (dBFS)
IN1
–78
10
= 169.1 MHz, f
with f
IMD3 (dBc)
15.36
IN
20
–66
= 170 MHz, f
SFDR (dBc)
INPUT AMPLITUDE (dBFS)
FREQUENCY (MHz)
FREQUENCY (MHz)
SFDR (dBFS)
30
IN2
–54
= 172.1 MHz, f
30.72
S
= 122.88 MSPS
40
–42
IN1
150 MSPS
29.1MHz @–7dBFS
32.1MHz @–7dBFS
SFDR = 86.1dBc (93dBFS)
= 29.1 MHz and f
50
–30
S
= 150 MSPS
46.08
60
–18
IN2
= 32.1 MHz
70
61.44
–6
IN
Rev. B | Page 23 of 52
)
Figure 39. AD9640-125 Single-Tone SNR/SFDR vs. Clock Frequency (f
–100
–120
–100
–120
–20
–40
–60
–80
–20
–40
–60
–80
100
Figure 37. AD9640-150 Two-Tone FFT with f
95
90
85
80
75
70
0
0
0
0
0
SFDR—SIDE B
Figure 38. AD9640 Noise Power Ratio (NPR)
10
25
SFDR—SIDE A
15.625
20
CLOCK FREQUENCY (Msps)
with f
50
f
IN2
FREQUENCY (MHz)
FREQUENCY (MHz)
= 172.1 MHz
30
IN
= 2.3 MHz
31.25
SNR—SIDE B
75
40
150 MSPS
169.1MHz @–7dBFS
172.1MHz @–7dBFS
SFDR = 83.8dBc (90.8dBFS)
NPR = 64.7dBc
NOTCH @ 18.5MHz
NOTCH WIDTH = 3MHz
100
50
IN1
= 169.1 MHz and
46.875
SNR—SIDE A
60
125
AD9640
70
62.5
150
S
)