MAX148_09 Datasheet, PDF (6/23 Pages) Maxim Integrated Products – +2.7V to +5.25V, Low-Power, 8-Channel, Serial 10-Bit ADCs

+2.7V to +5.25V, Low-Power, 8-Channel,
Serial 10-Bit ADCs
Typical Operating Characteristics
(VDD = 3.0V, VREF = 2.500V, fSCLK = 2.0MHz, CLOAD = 20pF, TA = +25NC, unless otherwise noted.)
INTEGRAL NONLINEARITY
vs. CODE
0.10
0.05
0
-0.05
-0.10
0
256
512
768
1024
CODE
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
2.00
RL = J
CODE = 1010101000
1.75
CLOAD = 50pF
1.50 MAX149
1.25
1.00
CLOAD = 20pF
0.75
MAX148
0.50
2.25 2.75 3.25 3.75 4.25 4.75 5.25
SUPPLY VOLTAGE (V)
SUPPLY CURRENT vs. TEMPERATURE
1.3
1.2
MAX149
1.1
1.0
MAX148
0.9
RL0AD = J
CODE = 1010101000
0.8
-60 -20 20
60
100 140
TEMPERATURE (NC)
INTEGRAL NONLINEARITY
vs. SUPPLY VOLTAGE
0.125
0.100
0.075
MAX149
INTEGRAL NONLINEARITY
vs. TEMPERATURE
0.125
VDD = 2.7V
0.100
0.075
MAX149
0.050
0.025
MAX148
0.050
0.025
MAX148
0
2.25 2.75 3.25 3.75 4.25 4.75 5.25
SUPPLY VOLTAGE (V)
SHUTDOWN SUPPLY CURRENT
vs. SUPPLY VOLTAGE
3.0
FULL POWER-DOWN
2.5
0
-60 -20
20
60 100 140
TEMPERATURE (NC)
2.5020
MAX149 INTERNAL REFERENCE
VOLTAGE vs. SUPPLY VOLTAGE
2.5015
2.0
2.5010
1.5
2.5005
1.0
2.5000
0.5
2.4995
0
2.25 2.75 3.25 3.75 4.25 4.75 5.25
SUPPLY VOLTAGE (V)
SHUTDOWN CURRENT
vs. TEMPERATURE
2.0
1.6
1.2
0.8
0.4
0
-60 -20
20
60 100 140
TEMPERATURE (NC)
2.4990
2.25 2.75 3.25 3.75 4.25 4.75 5.25
SUPPLY VOLTAGE (V)
MAX149 INTERNAL REFERENCE
VOLTAGE vs. TEMPERATURE
2.501
VDD = 5.25V
2.500
VDD = 3.6V
2.499
2.498
VDD = 2.7V
2.497
2.496
2.495
2.494
-60 -20
20
60 100 140
TEMPERATURE (NC)
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