Pentek 6230 Operating Manual page 88

AD6644–SPECIFICATIONS
DC SPECIFICATIONS
Parameter
RESOLUTION
ACCURACY
No Missing Codes
Offset Error
Gain Error
Differential Nonlinearity (DNL)
Integral Nonlinearity (INL)
TEMPERATURE DRIFT
Offset Error
Gain Error
POWER SUPPLY REJECTION (PSRR)
REFERENCE OUT (V )
REF
ANALOG INPUTS (AIN, AIN)
Differential Input Voltage Range
Differential Input Resistance
Differential Input Capacitance
POWER SUPPLY
Supply Voltage
1
AV
CC
DV
CC
Supply Current
IA (AV = 5.0 V)
VCC CC
ID (DV = 3.3 V)
VCC CC
POWER CONSUMPTION
NOTES
1
AV may be varied from 4.85 V to 5.25 V. However, rated ac (harmonics) performance is valid only over the range AV
CC
Specifications subject to change without notice.
DIGITAL SPECIFICATIONS
Parameter
ENCODE INPUTS (ENC, ENC)
1
Differential Input Voltage
Differential Input Resistance
Differential Input Capacitance
LOGIC OUTPUTS (D13–D0, DRY, OVR)
Logic Compatibility
2
Logic "1" Voltage
2
Logic "0" Voltage
Output Coding
DMID
NOTES
All ac specifications tested by driving ENCODE and ENCODE differentially. Reference Figure 22 for performance versus encode power.
1
2
Digital output logic levels: DV = 3.3 V, C
CC
Specifications subject to change without notice.
SWITCHING SPECIFICATIONS
Parameter
Maximum Conversion Rate
Minimum Conversion Rate
ENCODE Pulsewidth High
ENCODE Pulsewidth Low
Specifications subject to change without notice.
(AV = 5 V, DV = 3.3 V; T
CC CC MIN
Test
Temp Level
Full II
Full II
Full II
Full II
Full V
Full V
Full V
Full V
Full V
Full V
Full V
25°C V
Full II
Full II
Full II
Full II
Full II
(AV = 5 V, DV = 3.3 V; T
CC CC
Test
Temp Level
Full IV
25°C V
25°C V
Full V
Full V
Full V
= 10 pF. Capacitive loads >10 pF will degrade performance.
LOAD
(AV = 5 V, DV
CC CC
–25 C, T = +85 C)
MAX
Test
Temp Level
Full II
Full IV
Full IV
Full IV
= –25 C, T = +85 C)
MAX
AD6644AST-40
Min Typ Max
14
Guaranteed
–10 3 +10
–10 –6 +10
± 0.25
–1.0 +1.5
± 0.50
10
95
± 1.0
2.4
2.2
1
1.5
4.85 5.0 5.25
3.0 3.3 3.6
245 276
30 36
1.3 1.5
= –25 C, T = +85 C)
MIN MAX
AD6644AST-40
Min Typ Max
0.4
10
2.5
CMOS
2.5
0.4
Two's Complement
DV /2
CC
= 3.3 V; ENCODE and ENCODE = Maximum Conversion Rate MSPS; T
AD6644AST-40
Min Typ Max
40
15
10
10
–2–
AD6644AST-65
Min Typ Max
14
Guaranteed
–10 3 +10
–10 –6 +10
± 0.25
–1.0 +1.5
± 0.50
10
95
± 1.0
2.4
2.2
1
1.5
4.85 5.0 5.25
3.0 3.3 3.6
245 276
30 36
1.3 1.5
= 5.0 V to 5.25 V.
CC
AD6644AST-65
Min Typ Max
0.4
10
2.5
CMOS
2.5
0.4
Two's Complement
DV /2
CC
AD6644AST-65
Min Typ Max
65
15
6.5
6.5
Unit
Bits
mV
% FS
LSB
LSB
ppm/°C
ppm/°C
mV/V
V
V p-p
kΩ
pF
V
V
mA
mA
W
Unit
V p-p
kΩ
pF
V
V
V
=
MIN
Unit
MSPS
MSPS
ns
ns
REV. 0