Rainbow Electronics MAX1189 - Manual (Page 4)

MAX1179/MAX1187/MAX1189
16-Bit, 135ksps, Single-Supply ADCs with
Bipolar Analog Input Range
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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, TA = 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 2 µs
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 0 ns
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 0 ns
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