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AD12400
Rev. 0 | Page 4 of 28
LOGIC OUTPUTS
Output Drive Current
Output Common-Mode
Voltage
Start-Up Time
1
Tested using input frequency of 70 MHz. See Figure 17 for I(VD) variation vs. input frequency.
2
All ac specifications tested by driving ENC single-ended.
3
Refer to Table 5 for logic convention on all logic inputs.
4
Digital Output Logic Levels: DR V = 3.3 V, C
LOAD
= 8 pF. 3.3 V LVDS R1 = 100 .
Specifications subject to change without notice.
AC SPECIFICATIONS
1
Table 2. VA = 3.8 V, VC = 3.3 V, VD = 1.5 V, Encode = 400 MSPS, 0°C ≤ T
CASE
≤ 60°C, unless otherwise noted.
Parameter
Case Temp
DYNAMIC PERFORMANCE
2
SNR
Analog Input 10 MHz
Full
@ 1.0 dBFS 70 MHz
Full
128 MHz
Full
180 MHz
Full
SINAD
3
Analog Input 10 MHz
Full
@ 1.0 dBFS 70 MHz
Full
128 MHz
Full
180 MHz
Full
Spurious-Free Dynamic Range
3
Analog Input 10 MHz
Full
@ 1.0 dBFS 70 MHz
Full
128 MHz
Full
180 MHz
Full
Image Spur
4
Analog Input 10 MHz
Full
@ 1.0 dBFS 70 MHz
Full
128 MHz
Full
180 MHz
Full
Offset Spur
4
60°C
Analog Input @ 1.0 dBFS
Two-Tone IMD
5
F1, F2 @ 6 dBFS
60°C
SWITCHING SPECIFICATIONS
Conversion Rate
6
Full
Encode Pulsewidth High (t
EH
)
1
60°C
Encode Pulsewidth Low (t
EL
)
1
60°C
DIGITAL OUTPUT PARAMETERS
Valid Time (t
V
)
Full
Propagation Delay (t
PD
)
60°C
Rise Time (t
R
) (20% to 80%)
60°C
Fall Time (t
F
) (20% to 80%)
60°C
Full
Full
IV
IV
AD12400JWS
AD12400KWS
mA
V
4
1.125
+4
1.375
4
1.125
+4
1.375
Full
IV
600
600
ms
Test Level
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
V
V
IV
V
V
IV
V
V
V
AD12400JWS
Min
Typ
62
64.4
61.5
64
60
63.5
60
62.5
61
64
60.5
64
59
62.5
57
61
69
80
69
84
67
76
62
71
60
75
60
72
56
70
54
70
65
75
396
400
1.25
1.25
1.9
2.4
1.20
1
1
AD12400KWS
Min
Typ
62
64.4
61.5
64
60
63.5
60
62.5
61
64
60.5
64
59
62.5
57
61
69
80
69
84
67
76
62
71
62
75
62
72
62
70
62
70
65
75
396
400
1.25
1.25
1.9
2.4
1.20
1
1
Unit
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
dBFS
dBc
MSPS
ns
ns
ns
ns
ns
ns
Max
Max
404
3.1
404
3.1