AD9218 Analog Devices, AD9218 Datasheet - Page 6

• Manufacturer Part Number: AD9218
• Description: 10-Bit, 40/65/80/105 MSPS 3 V Dual A/D Converter
• Manufacturer: Analog Devices

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

AD9218
SWITCHING SPECIFICATIONS
V
Table 4.
Parameter
ENCODE INPUT PARAMETERS
DIGITAL OUTPUT PARAMETERS
1
TIMING DIAGRAMS
t and t
an ac load of 5 pF or a dc current of ±40 μA. Rise and fall times are measured from 10% to 90%.
DD
V
Maximum Encode Rate
Minimum Encode Rate
Encode Pulse Width High (t
Encode Pulse Width Low (t
Aperture Delay (t
Aperture Uncertainty (Jitter)
Output Valid Time (t
Output Propagation Delay (t
Output Rise Time (t
Output Fall Time (t
Out-of-Range Recovery Time
Transient Response Time
Recovery Time from Power-Down
Pipeline Delay
= 3.0 V, V = 3.0 V; external reference, unless otherwise noted.
PD
are measured from the 1.5 level of the ENCODE input to the 50%/50% levels of the digital outputs swing. The digital output load during test is not to exceed
D9
D9
ENCODE B
ENCODE A
D
A
B
A
A
TO D0
TO D0
IN
IN
A
B
A
)
F
R
)
A
B
V
)
)
t
1
A
t
SAMPLE N
EH
EL
EH
)
PD
)
)
1
DATA N – 5
DATA N – 5
t
EL
Figure 2. Normal Operation, Same Clock (S1 = 1, S2 = 0) Channel Timing
SAMPLE
N + 1
Temp
Full
Full
Full
Full
25°C
25°C
Full
Full
25°C
25°C
25°C
25°C
25°C
Full
DATA N – 4
DATA N – 4
1/f
S
Test
Level
IV
IV
V
V
V
V
V
V
VI
IV
VI
VI
V
IV
SAMPLE
N + 2
Rev. C | Page 6 of 28
DATA N – 3
DATA N – 3
Min
40/65
7/6
7/6
2.5
SAMPLE
AD9218BST-40/-65
N + 3
DATA N – 2
DATA N – 2
Typ
2
3
4.5
1
1.2
5
5
10
5
SAMPLE
Max
20/20
7
N + 4
DATA N – 1
DATA N – 1
t
PD
Min
80/105
5/3.8
5/3.8
2.5
SAMPLE
N + 5
AD9218BST-80/-105
DATA N
DATA N
Typ
2
3
4.5
1.0
1.2
5
5
10
5
SAMPLE
N + 6
Max
20/20
6
t
V
Unit
MSPS
MSPS
ns
ns
ns
ps rms
ns
ns
ns
ns
ns
ns
Cycles
Cycles