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MAX1156 Datasheet, PDF (4/15 Pages) Maxim Integrated Products – 14-Bit, 135ksps, Single-Supply ADCs with Bipolar Analog Input Range
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14-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
MIN TYP MAX UNITS
AVDD
4.75
5.25
V
DVDD
2.70
5.25
V
External reference, MAX1156
2.9
IAVDD
135ksps
Internal reference,
135ksps
MAX1158/MAX1174
MAX1156
MAX1158/MAX1174
4
5.3
mA
3.8
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
1
LSB
TIMING CHARACTERISTICS (Figures 1 and 2)
(AVDD = +4.75V to +5.25V ±5%, 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
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
MIN
fSAMPLE-MAX
tACQ
2
tCONV
tCSH
(Note 2)
40
tCSL
(Note 2)
DVDD = +4.75V to +5.25V 40
DVDD = +2.7V to +5.25V
60
tDS
0
tDH
DVDD = +4.75V to +5.25V
DVDD = +2.7V to +5.25V
40
60
tDO
DVDD = +4.75V to +5.25V
DVDD = +2.7V to +5.25V
tDV
0
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
TYP MAX UNITS
135 ksps
µs
4.7
µs
ns
ns
ns
ns
40
ns
80
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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