Manual

MAX1179/MAX1187/MAX1189
16-Bit, 135ksps, Single-Supply ADCs with
Bipolar Analog Input Range
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ELECTRICAL CHARACTERISTICS (continued)
(AV
DD
= DV
DD
= +5V ±5%, external reference = +4.096V, C
REF
= 10µF, C
REFADJ
= 0.1µF, V
REFADJ
= AV
DD
, 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
Normal operation -1.8 +0.4
MAX1179,
-5V ≤ V
AIN
≤ +5V
Shutdown mode -1.8 +1.8
MAX1187,
0 ≤ V
AIN
≤ +10V
Normal/shutdown
mode
-0.1 +2.0
Normal operation -1.8 +1.2
Input Current I
AIN
MAX1189,
-10V ≤ V
AIN
≤ +10V
Shutdown mode -1.8 +1.8
mA
MAX1179, V
AIN
= +5V, shutdown mode to
operating mode
1 1.4
Input Current Step at Power-Up I
PU
MAX1189, V
AIN
= +10V, shutdown mode to
operating mode
0.5 0.7
mA
Input Capacitance C
IN
10 pF
INTERNAL REFERENCE
REF Output Voltage V
REF
4.056 4.096 4.136 V
REF Output Tempco ±35 ppm/°C
REF Short-Circuit Current I
REF-
(
SC
)
±10 mA
EXTERNAL REFERENCE
REF and REFADJ Input Voltage
Range
3.8 4.2 V
REFADJ Buffer Disable Threshold
AV
DD
-
0.4
AV
DD
-
0.1
V
Normal mode, f
SAMPLE
= 135ksps 60 100
REF Input Current I
REF
Shutdown mode (Note 1) ±0.1 ±10
µA
REFADJ Input Current I
REFADJ
REFADJ = AV
DD
16 µA
DIGITAL INPUTS/OUTPUTS
Output High Voltage V
OH
I
SOURCE
= 0.5mA, DV
DD
= +2.7V to +5.25V,
AV
DD
= +5.25V
DV
DD
-
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
Input High Voltage V
IH
0.7 ×
DV
DD
V
Input Low Voltage V
IL
0.3 ×
DV
DD
V
Input Leakage Current Digital input = DV
DD
or 0V -1 +1 µA
Input Hysteresis V
HYST
0.2 V
Input Capacitance C
IN
15 pF
Three-State Output Leakage I
OZ
±10 µA
Three-State Output Capacitance C
OZ
15 pF