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MAX1178 Datasheet, PDF (4/14 Pages) Maxim Integrated Products – 16-Bit, 135ksps, Single-Supply ADCs with Bipolar Analog Input Range
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16-Bit, 135ksps, Single-Supply ADCs with
Bipolar Analog Input Range
ELECTRICAL CHARACTERISTICS (continued)
(AVDD = DVDD = +5V ±5%, external reference = +4.096V, CREF = 10µF, CREFADJ = 0.1µF, VREFADJ = AVDD, TA = TMIN to TMAX,
unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER
POWER SUPPLIES
Analog Supply Voltage
Digital Supply Voltage
Analog Supply Current
SYMBOL
CONDITIONS
AVDD
DVDD
IAVDD
External reference, 135ksps
Internal reference, 135ksps
MIN TYP MAX UNITS
4.75
5.25
V
2.70
5.25
V
4
5.3
mA
5.2
6.2
Shutdown Supply Current
Digital Supply Current
Power-Supply Rejection
ISHDN
IDVDD
Shutdown mode (Note 1), digital input =
DVDD or 0V
Standby mode
AVDD = DVDD = 4.75V to 5.25V
0.5
5
µA
3.7
mA
0.75
mA
3.5
LSB
TIMING CHARACTERISTICS (Figures 1 and 2)
(AVDD = +4.75V to +5.25V, DVDD = +2.7V to AVDD, external reference = +4.096V, CREF = 10µF, CREFADJ = 0.1µF, VREFADJ = AVDD,
CLOAD = 20pF, TA = TMIN to TMAX.)
PARAMETER
Maximum Sampling Rate
Acquisition Time
Conversion Time
CS Pulse-Width High
CS Pulse-Width Low (Note 2)
R/C to CS Fall Setup Time
R/C to CS Fall Hold Time
CS to Output Data Valid
EOC Fall to CS Fall
CS Rise to EOC Rise
Bus Relinquish Time
HBEN Transition to Output Data
Valid
SYMBOL
CONDITIONS
fSAMPLE-MAX
tACQ
tCONV
tCSH
(Note 2)
tCSL
DVDD = 4.75V to 5.25V
DVDD = 2.7V to 5.25V
tDS
tDH
DVDD = 4.75V to 5.25V
DVDD = 2.7V to 5.25V
tDO
DVDD = 4.75V to 5.25V
DVDD = 2.7V to 5.25V
tDV
tEOC
DVDD = 4.75V to 5.25V
DVDD = 2.7V to 5.25V
tBR
DVDD = 4.75V to 5.25V
DVDD = 2.7V to 5.25V
tDO1
DVDD = 4.75V to 5.25V
DVDD = 2.7V to 5.25V
MIN TYP MAX UNITS
135 ksps
2
µs
4.7
µs
40
ns
40
ns
60
0
ns
40
ns
60
40
ns
80
0
ns
40
ns
80
40
ns
80
40
ns
80
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.
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