AD6644AST-65 Analog Devices Inc, AD6644AST-65 Datasheet - Page 4

• Manufacturer Part Number: AD6644AST-65
• Description: IC ADC 14BIT 65MSPS CMOS 52-LQFP
• Manufacturer: Analog Devices Inc

Specifications of AD6644AST-65

• Rohs Status: RoHS non-compliant
• Number Of Bits: 14
• Sampling Rate (per Second): 65M
• Data Interface: Parallel
• Number Of Converters: 4
• Power Dissipation (max): 1.3W
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -25°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 52-LQFP

AD6644
DIGITAL SPECIFICATIONS
AV
Table 2.
Parameter
ENCODE INPUTS (ENCODE, ENCODE)
LOGIC OUTPUTS (D13 to D0, DRY, OVR)
1
2
3
SWITCHING SPECIFICATIONS
AV
Table 3.
Parameter
Maximum Conversion Rate
Minimum Conversion Rate
ENCODE Pulse Width High
ENCODE Pulse Width Low
1
AV
unless otherwise noted.
Table 4.
Parameter
ENCODE INPUT PARAMETERS
ENCODE/DATA READY
ENCODE/DATA (D13:0), OVR
See the Explanation of Test Levels section.
All ac specifications tested by driving ENCODE and ENCODE differentially. Reference Figure 18 for performance vs. encode power.
Digital output logic levels: DV
See the Explanation of Test Levels section.
Differential Input Voltage
Differential Input Resistance
Differential Input Capacitance
Logic Compatibility
Logic 1 Voltage
Logic 0 Voltage
Output Coding
DMID
Encode Period @ 65 MSPS
Encode Period @ 40 MSPS
Encode Pulse Width High
Encode Pulse Width 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)
ENCODE to DATA Falling Low
ENCODE to DATA Rising Low
ENCODE to DATA Delay (Hold Time)
ENCODE to DATA Delay (Setup Time)
CC
CC
CC
Encode = 65 MSPS (50% Duty Cycle)
Encode = 40 MSPS (50% Duty Cycle)
= 5 V, DV
= 5 V, DV
= 5 V, DV
CC
CC
CC
3
3
= 3.3 V; ENCODE and ENCODE = maximum conversion rate MSPS; T
= 3.3 V; T
= 3.3 V; ENCODE and ENCODE = maximum conversion rate MSPS; T
CC
3
2
@ 65 MSPS
= 3.3 V, C
2
MIN
= −25°C, T
LOAD
4
5
= 10 pF. Capacitive loads >10 pF degrade performance.
Temp
Full
Full
Full
Full
MAX
= +85°C, unless otherwise noted.
Temp
Full
25°C
25°C
Full
Full
Full
Test Level
II
IV
IV
IV
t
t
t
t
t
Name
t
t
t
t
t
ENC
ENC
ENCH
ENCL
DR
E_DR
E_FL
E_RL
H_E
S_E
Test Level
IV
V
V
V
V
V
Rev. D | Page 4 of 24
1
Temp
Full
Full
Full
Full
Full
Full
Full
Full
Full
Full
Full
Full
1
Min
40
10
10
Min
0.4
Test Level
V
V
IV
IV
IV
IV
IV
IV
IV
IV
IV
IV
AD6644AST-40
Twos complement
AD6644AST-40
Typ
Typ
10
2.5
CMOS
2.5
0.4
DV
CC
MIN
1
/2
= –25°C, T
MIN
Max
15
Min
6.2
6.2
2.6
10.3
15.1
3.8
3.0
3.0
6.2
15.9
= −25°C, T
Max
MAX
Min
65
6.5
6.5
AD6644AST-40/65
Min
0.4
= +85°C, unless otherwise noted.
MAX
t
t
AD6644AST-65
ENCH
ENC
Twos complement
15.4
11.1
15.9
19.4
Typ
7.7
7.7
3.4
5.5
4.3
4.3
9.8
AD6644AST-65
= +85°C, C
25
− t
+ t
Typ
E_FL
Typ
10
2.5
CMOS
2.5
0.4
DV
DR
CC
/2
Max
15
LOAD
Max
9.2
9.2
4.6
12.3
17.1
9.2
6.4
6.4
11.6
21.2
Max
= 10 Pf,
Unit
MSPS
MSPS
ns
ns
ns
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Unit
V p-p
kΩ
pF
V
V
V