Datasheet

MAX1065/MAX1066
Low-Power, 14-Bit Analog-to-Digital Converters
with Parallel Interface
4 _______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(AV
DD
= DV
DD
= 5V, external reference = 4.096V, C
REF
= 1µF, C
REFADJ
= 0.1µF, T
A
= T
MIN
to T
MAX
, unless otherwise noted.
Typical values are at T
A
= +25°C.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
165ksps 0.5 0.7
100ksps 0.3
10ksps 0.03
Digital Supply Current I
DVDD
D0–D13 = all zeros
1ksps 0.003
mA
I
AVDD
0.05 5 mA
Full power-down
I
DVDD
0.5 6 µA
I
AVDD
1.0 1.2 mA
Shutdown Supply Current
(Note 4)
I
SHDN
REF and REF
buffer enabled
(standby mode)
I
DVDD
0.5 5 µA
Power-Supply Rejection Ratio
(Note 5)
PSRR AV
DD
= 5V, ±5%, full-scale input 68 dB
TIMING CHARACTERISTICS (Figures 1 and 2)
(AV
DD
= 4.75V to 5.25V, DV
DD
= 2.7V to AV
DD
, external reference = 4.096V, C
REF
= 1µF, C
REFADJ
= 0.1µF, C
D
13–D0,
C
EOC
= 20pF,
T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Acquisition Time t
ACQ
1.1
Conversion Time t
CONV
4.7
µs
CS Pulse Width High t
CSH
(Note 6) 40 ns
V
DVDD
= 4.75V to 5.25V 40
CS Pulse Width Low t
CSL
(Note 6)
V
DVDD
= 2.7V to 4.74V 60
ns
R/C to CS Fall Setup Time t
DS
0ns
V
DVDD
= 4.75V to 5.25V 40
R/C to CS Fall Hold Time t
DH
V
DVDD
= 2.7V to 5.25V 60
ns
V
DVDD
= 4.75V to 5.25V 40
CS to Output Data Valid t
DO
V
DVDD
= 2.7V to 4.74V 80
ns
V
DVDD
= 4.75V to 5.25V 40
HBEN Transition To
Output Data Valid
(MAX1066 only)
t
DO1
V
DVDD
= 2.7V to 4.74V 80
ns
EOC Fall To CS Fall t
DV
0ns
V
DVDD
= 4.75V to 5.25V 40
CS Rise To EOC Rise t
EOC
V
DVDD
= 2.7V to 4.74V 80
ns
V
DVDD
= 4.75V to 5.25V 40
Bus Relinquish Time
(Note 6)
t
BR
V
DVDD
= 2.7V to 4.74V 80
ns
Note 1: Relative accuracy is the deviation of the analog value at any code from its theoretical value after offset and gain errors have
been removed.
Note 2: Offset nulled.
Note 3: Guaranteed by design, not production tested.
Note 4: Maximum specification is limited by automated test equipment.
Note 5: Defined as the change in positive full scale caused by a ±5% variation in the nominal supply.
Note 6: To ensure best performance, finish reading the data and wait t
BR
before starting a new acquisition.