Datasheet

MAX1065/MAX1066
Low-Power, 14-Bit Analog-to-Digital Converters
with Parallel Interface
_______________________________________________________________________________________ 3
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
INTERNAL REFERENCE
REF Output Voltage V
REF
4.056 4.096 4.136 V
REF Output Tempco TC
REF
±35 ppm/°C
REF Short-Circuit Current I
REFSC
±10 mA
Capacitive Bypass at REFADJ C
REFADJ
0.1 µF
Capacitive Bypass at REF C
REF
1µF
REFADJ Input Leakage Current I
REFADJ
20 µA
EXTERNAL REFERENCE
REFADJ Buffer Disable
Threshold
To power-down the internal reference
AV
DD
-
0.4
AV
DD
-
0.1
V
REF Input Voltage Range Internal reference disabled (Note 3) 3.8
AV
DD
-
0.2
V
V
REF
= 4.096V, f
SAMPLE
= 165ksps 14 25
REF Input Current I
REF
Shutdown mode ±0.1
µA
DIGITAL INPUTS/OUTPUTS (CS, R/C, EOC, D0–D13, RESET, HBEN)
Input High Voltage V
IH
0.7 x
DV
DD
Input Low Voltage V
IL
0.3 x
DV
DD
V
Input Leakage Current I
IN
V
IH
= 0 or DV
DD
±0.1 ±1 µA
Input Hysteresis V
HYST
0.1 V
Input Capacitance C
IN
15 pF
Output High Voltage V
OH
I
SOURCE
= 0.5mA, DV
DD
= 2.7V to
5.25V, AV
DD
= 5.25V
D
VDD
-
0.4
V
Output Low Voltage V
OL
I
SINK
= 1.6mA, DV
DD
= 2.7V to 5.25V,
AV
DD
= 5.25V
0.4 V
Three-State Leakage Current I
OZ
D0–D13 ±0.1 ± 10 µA
Three-State Output
Capacitance
C
OZ
15 pF
POWER REQUIREMENTS
Analog Supply Voltage AV
DD
4.75 5.25 V
Digital Supply Voltage DV
DD
2.7 AV
DD
V
165ksps 3.2 3.6
100ksps 2.6
10ksps 1.9
Internal reference
1ksps 1.8
165ksps 2.4 2.8
100ksps 1.8
10ksps 0.8
Analog Supply Current I
AVDD
External reference
1ksps 0.2
mA