AD9218 Analog Devices, AD9218 Datasheet - Page 15
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AD9218
Manufacturer Part Number
AD9218
Description
10-Bit, 40/65/80/105 MSPS 3 V Dual A/D Converter
Manufacturer
Analog Devices
Datasheet
1.AD9218.pdf
(28 pages)
Specifications of AD9218
Resolution (bits)
10bit
# Chan
2
Sample Rate
105MSPS
Interface
Par
Analog Input Type
Diff-Uni
Ain Range
1 V p-p,2 V p-p
Adc Architecture
Pipelined
Pkg Type
QFP
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Figure 28. SINAD and SFDR vs. Encode Rate (A
90
80
70
60
50
40
30
20
10
75
70
65
60
55
50
45
Grade) A
90
85
80
75
70
65
60
55
50
0
10
0
H3 1V
Figure 26. Harmonic Distortion (Second and Third) and
Figure 27. Harmonic Distortion (Second and Third) and
SFDR 2V
SFDR 1V
20
IN
SFDR vs. A
2V SINGLE-ENDED DRIVE
= –0.5 dBFS Differential, 1 V p-p Analog Input Range )
20
20
H2 2V
SFDR vs. A
SFDR
40
H2 1V
IN
60
A
Frequency (1 V p-p, FS = 40 MSPS)
30
40
A
ENCODE RATE (MSPS)
IN
IN
IN
FREQUENCY (MHz)
FREQUENCY (MHz)
Frequency (FS = 65 MSPS)
80
1V DIFFERENTIAL DRIVE
60
40
SINAD
100
THIRD
SFDR
H3 2V
120
50
80
SECOND
IN
= 10.3 MHz, 105 MSPS
140
100
60
160
180
120
70
Rev. C | Page 15 of 28
Figure 31. SINAD and SFDR vs. Encode Rate (A
–100
–100
–10
–20
–30
–40
–50
–60
–70
–80
–90
–10
–20
–30
–40
–50
–60
–70
–80
–90
80
75
70
65
60
55
50
45
0
0
0
0
0
A
IN
ENCODE = 65MSPS
A
A
SFDR = –72.9dBFS
ENCODE = 40MSPS
A
A
SFDR = 74dBc
= –0.5 dBFS Differential, 1 V p-p Analog Input Range
Figure 29. Two-Tone Intermodulation Distortion
Figure 30. Two-Tone Intermodulation Distortion
IN
IN
IN
IN
10
1 = 28.1MHz AT –7dBFS
2 = 29.1MHz AT –7dBFS
1 = 10MHz AT –7dBFS
2 = 11MHz AT –7dBFS
(28 MHz, 29 MHz; 1 V p-p, FS = 65 MSPS)
(10 MHz, 11 MHz; 1 V p-p, FS = 40 MSPS)
20
ENCODE RATE (MHz)
30
40
50
IN
= 10.3 MHz, 65 MSPS Grade)
60
SINAD
SFDR
70
SNR
AD9218
80
32.5
20