Manual

MAX1179/MAX1187/MAX1189
16-Bit, 135ksps, Single-Supply ADCs with
Bipolar Analog Input Range
4 _______________________________________________________________________________________
Note 1: Maximum specification is limited by automated test equipment.
Note 2: To ensure best performance, finish reading the data and wait t
BR
before starting a new acquisition.
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
POWER SUPPLIES
Analog Supply Voltage AV
DD
4.75 5.25 V
Digital Supply Voltage DV
DD
2.70 5.25 V
MAX1187 2.9
External reference,
135ksps
MAX1179/MAX1189 4.0 5.3
MAX1187 3.8
Analog Supply Current I
AVDD
Internal reference,
135ksps
MAX1179/MAX1189 5.2 6.2
mA
Shutdown mode, I
AVDD
+ I
DVDD
(Note 1),
digital input = DV
DD
or 0V
0.5 5 µA
Shutdown Supply Current I
SHDN
Standby mode 3.7 mA
Digital Supply Current I
DVDD
0.75 mA
Power-Supply Rejection AV
DD
= DV
DD
= +4.75V to +5.25V 3.5 LSB
TIMING CHARACTERISTICS (Figures 1 and 2)
(AV
DD
= +5V ±5V, DV
DD
= +2.7V to AV
DD
, external reference = +4.096V, C
REF
= 10µF, C
REFADJ
= 0.1µF, V
REFADJ
= AV
DD
, C
LOAD
= 20pF, T
A
= T
MIN
to T
MAX
.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Maximum Sampling Rate f
S AM P LE
(
M A X
)
135 ksps
Acquisition Time t
ACQ
2µs
Conversion Time t
CONV
4.7 µs
CS Pulse Width High t
CSH
(Note 2) 40 ns
DV
DD
= +4.75V to +5.25V 40
CS Pulse Width Low t
CSL
(Note 2)
DV
DD
= +2.7V to +5.25V 60
ns
R/C to CS Fall Setup Time t
DS
0ns
DV
DD
= +4.75V to +5.25V 40
R/C to CS Fall Hold Time t
DH
DV
DD
= +2.7V to +5.25V 60
ns
DV
DD
= +4.75V to +5.25V 40
CS to Output Data Valid t
DO
DV
DD
= +2.7V to +5.25V 80
ns
EOC Fall to CS Fall t
DV
0ns
DV
DD
= +4.75V to +5.25V 40
CS Rise to EOC Rise t
EOC
DV
DD
= +2.7V to +5.25V 80
ns
DV
DD
= +4.75V to +5.25V 40
Bus Relinquish Time t
BR
DV
DD
= +2.7V to +5.25V 80
ns