AD9641 Analog Devices, AD9641 Datasheet - Page 15

• Manufacturer Part Number: AD9641
• Description: 14-Bit, 80 MSPS/155 MSPS, 1.8 V Serial Output Analog-to-Digital Converter (ADC)
• Manufacturer: Analog Devices

Specifications of AD9641

• Resolution (bits): 14bit
• # Chan: 1
• Sample Rate: 80MSPS
• Interface: Ser
• Analog Input Type: Diff-Bip
• Ain Range: 1.75 V p-p
• Adc Architecture: Pipelined
• Pkg Type: CSP

Data Sheet
Figure 35. AD9641-155 Two-Tone FFT with f
Figure 37. AD9641-155 Single-Tone SNR/SFDR vs. Sample Rate (f
–100
–120
–140
–100
–120
–140
105
100
–20
–40
–60
–80
–20
–40
–60
–80
Figure 36. AD9641-155 Two-Tone FFT with f
95
90
85
80
75
70
0
0
50
0
0
7.75 15.50 23.25 31.00 38.75 46.50 54.25 62.00 69.75 77.50
7.75 15.50 23.25 31.00 38.75 46.50 54.25 62.00 69.75 77.50
65
80
with f
SAMPLE RATE (MSPS)
f
FREQUENCY (MHz)
FREQUENCY (MHz)
IN2
= 172.1 MHz
95
IN
= 70.1 MHz
SFDR
SNR
155MSPS
29.9MHz @ –7dBFS
32.9MHz @ –7dBFS
SFDR = 88.7dBc (95.7dBFS)
155MSPS
169.1MHz @ –7dBFS
172.1MHz @ –7dBFS
SFDR = 89.8dBc (96.8dBFS)
110
IN1
= 29.9 MHz and f
IN1
125
= 169.1 MHz and
140
IN2
= 32.9 MHz
155
S
)
Rev. B | Page 15 of 36
–0.25
–0.50
–0.2
–0.4
–0.6
–0.8
–1.0
6000
5000
4000
3000
2000
1000
0.50
0.25
1.0
0.8
0.6
0.4
0.2
0
0
0
0
0
N – 5 N – 4 N – 3 N – 2 N – 1
Figure 38. AD9641-155 Grounded Input Histogram
Figure 40. AD9641-155 DNL with f
Figure 39. AD9641-155 INL with f
2000
2000
4000
4000
6000
6000
OUTPUT CODE
OUTPUT CODE
OUTPUT CODE
8000 10,000 12,000 14,000 16,000
8000 10,000 12,000 14,000 16,000
N
N + 1 N + 2 N + 3 N + 4
IN
IN
= 30.3 MHz
= 30.3 MHz
AD9641