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 tBR before starting a new acquisition.
ELECTRICAL CHARACTERISTICS (continued)
(AVDD = DVDD = +5V ±5%, external reference = +4.096V, CREF = 10F, CREFADJ = 0.1F, VREFADJ = AVDD, TA = TMIN to TMAX,
unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
POWER SUPPLIES
Analog Supply Voltage
AVDD
4.75
5.25
V
Digital Supply Voltage
DVDD
2.70
5.25
V
MAX1187
2.9
External reference,
135ksps
MAX1179/MAX1189
4.0
5.3
MAX1187
3.8
Analog Supply Current
IAVDD
Internal reference,
135ksps
MAX1179/MAX1189
5.2
6.2
mA
Shutdown mode, IAVDD + IDVDD (Note 1),
digital input = DVDD or 0V
0.5
5
A
Shutdown Supply Current
ISHDN
Standby mode
3.7
mA
Digital Supply Current
IDVDD
0.75
mA
Power-Supply Rejection
AVDD = DVDD = +4.75V to +5.25V
3.5
LSB
TIMING CHARACTERISTICS (Figures 1 and 2)
(AVDD = +5V ±5V, DVDD = +2.7V to AVDD, external reference = +4.096V, CREF = 10F, CREFADJ = 0.1F, VREFADJ = AVDD, CLOAD
= 20pF, TA = TMIN to TMAX.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Maximum Sampling Rate
fSAMPLE(MAX)
135
ksps
Acquisition Time
tACQ
2s
Conversion Time
tCONV
4.7
s
CS Pulse Width High
tCSH
(Note 2)
40
ns
DVDD = +4.75V to +5.25V
40
CS Pulse Width Low
tCSL
(Note 2)
DVDD = +2.7V to +5.25V
60
ns
R/C to CS Fall Setup Time
tDS
0ns
DVDD = +4.75V to +5.25V
40
R/C to CS Fall Hold Time
tDH
DVDD = +2.7V to +5.25V
60
ns
DVDD = +4.75V to +5.25V
40
CS to Output Data Valid
tDO
DVDD = +2.7V to +5.25V
80
ns
EOC Fall to CS Fall
tDV
0ns
DVDD = +4.75V to +5.25V
40
CS Rise to EOC Rise
tEOC
DVDD = +2.7V to +5.25V
80
ns
DVDD = +4.75V to +5.25V
40
Bus Relinquish Time
tBR
DVDD = +2.7V to +5.25V
80
ns
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