AD6644PCB AD [Analog Devices], AD6644PCB Datasheet - Page 3

• Manufacturer Part Number: AD6644PCB
• Description: 14-Bit, 40 MSPS/65 MSPS A/D Converter
• Manufacturer: AD [Analog Devices]

AC SPECIFICATIONS
Parameter
SNR
SINAD
WORST HARMONIC (2
WORST HARMONIC (4
TWO-TONE SFDR
TWO-TONE IMD REJECTION
ANALOG INPUT BANDWIDTH
NOTES
1
2
3
4
Specifications subject to change without notice.
SWITCHING SPECIFICATIONS
Parameter
ENCODE INPUT PARAMETERS
ENCODE/DATA READY
ENCODE/DATA (D13:0), OVR
REV. 0
All ac specifications tested by driving ENCODE and ENCODE differentially.
AV
Analog input signal power swept from –7 dBFS to –100 dBFS.
F1 = 15 MHz, F2 = 15.5 MHz.
Analog Input
@ –1 dBFS
Analog Input
@ –1 dBFS
Analog Input
@ –1 dBFS
Analog Input
@ –1 dBFS
F1, F2 @ –7 dBFS
Encode Period
Encode Period
Encode Pulsewidth High
Encode Pulsewidth Low @ 65 MSPS
Encode Rising to Data Ready Falling
Encode Rising to Data Ready Rising
@ 65 MSPS (50% Duty Cycle)
@ 40 MSPS (50% Duty Cycle)
ENC to DATA Falling Low
ENC to DATA Rising Low
ENCODE to DATA Delay (Hold Time)
ENCODE to DATA Delay (Setup Time)
CC
Encode = 65 MSPS (50% Duty Cycle)
Encode = 40 MSPS (50% Duty Cycle)
= 5 V to 5.25 V for rated ac performance.
2
1
1
@ 65 MSPS
@ 40 MSPS
2.2 MHz
15.5 MHz
30.5 MHz
2.2 MHz
15.5 MHz
30.5 MHz
2.2 MHz
15.5 MHz
30.5 MHz
2.2 MHz
15.5 MHz
30.5 MHz
2, 3, 4
ND
TH
2
@ 65 MSPS
or 3
or Higher)
RD
2, 4
1
)
(AV
1
2
CC
2
= 5 V, DV
3
4
Temp
25°C
25°C
25°C
25°C
25°C
25°C
25°C
25°C
25°C
25°C
25°C
25°C
Full
Full
25°C
CC
(AV
–25 C, T
Name
t
t
t
t
t
t
t
t
t
t
= 3.3 V; ENCODE and ENCODE = Maximum Conversion Rate MSPS; T
ENC
ENC
ENCH
ENCL
DR
E_DR
E_FL
E_RL
H_E
S_E
CC
Test
Level
II
II
II
II
II
V
II
II
V
II
II
V
V
V
V
= 5 V, DV
MAX
= +85 C, C
Temp
Full
Full
Full
Full
Full
Full
Full
Full
Full
Full
Full
Full
CC
Min
= 3.3 V; ENCODE and ENCODE = Maximum Conversion Rate MSPS; T
–3–
AD6644AST-40
LOAD
Typ
74.5
74.0
73.5
74.5
74.0
73.0
92
90
85
93
92
92
100
90
250
= 10 pF)
Test
Level
V
V
IV
IV
IV
IV
IV
IV
IV
IV
IV
IV
Max
Min
6.2
6.2
2.6
10.3
15.1
3.8
3.0
3.0
6.2
15.9
Min
72
72
72
72
72
83
83
85
85
AD6644AST-40/65
AD6644AST-65
Typ
15.4
25
7.7
7.7
3.4
t
11.1
15.9
5.5
4.3
4.3
t
9.8
19.4
ENCH
ENC
Typ
74.5
74.0
73.5
74.5
74.0
73.0
92
90
85
93
92
92
100
90
250
– t
+ t
MIN
E_FL
DR
= –25 C, T
Max
Max
9.2
9.2
4.6
12.3
17.1
9.2
6.4
6.4
11.6
21.2
MAX
AD6644
= +85 C)
Unit
dB
dB
dB
dB
dB
dB
dBc
dBc
dBc
dBc
dBc
dBc
dBFS
dBc
MHz
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
MIN
=