MAX148 Datasheet, PDF (6/24 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 (continued)
(V_DD = 3.0V, VREF = 2.500V, f_SCLK = 2.0MHz, C_LOAD = 20pF, T_A = +25°C, unless otherwise noted.)
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
2.00
R_L = ∞
CODE = 1010101000
1.75
C_LOAD = 50pF
SHUTDOWN SUPPLY CURRENT
vs. SUPPLY VOLTAGE
3.0
FULL POWER-DOWN
2.5
2.5020
MAX149
INTERNAL REFERENCE VOLTAGE
vs. SUPPLY VOLTAGE
2.5015
1.50 _MAX149
2.0
1.25
1.5
2.5010
2.5005
1.00
C_LOAD = 20pF
0.75
MAX148
0.50
2.25 2.75 3.25 3.75 4.25 4.75 5.25
SUPPLY VOLTAGE (V)
1.0
0.5
0
2.25 2.75 3.25 3.75 4.25 4.75 5.25
SUPPLY VOLTAGE (V)
2.5000
2.4995
2.4990
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
SHUTDOWN CURRENT
vs. TEMPERATURE
2.0
1.6
1.1
1.2
1.0
0.8
MAX148
0.9
0.4
R_LOAD = ∞
CODE = 1010101000
0.8
-60 -20
20
60 100 140
0
-60 -20 20
60 100 140
TEMPERATURE (°C)
MAX149
TEMPERATURE (°C)
INTERNAL REFERENCE VOLTAGE
vs. TEMPERATURE
2.501
V_DD = 5.25V
2.500
V_DD = 3.6V
2.499
2.498
V_DD = 2.7V
2.497
2.496
2.495
2.494
-60
-20 20
60 100 140
TEMPERATURE (°C)
6 _______________________________________________________________________________________