Rainbow Electronics MAX149 - Manual (Page 6)

MAX148/MAX149
+2.7V to +5.25V, Low-Power, 8-Channel,
Serial 10-Bit ADCs
6 _______________________________________________________________________________________
2.00
0.50
2.25 2.75
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
1.75
1.25
1.50
1.00
0.75
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (mA)
3.75 5.25 3.25 4.25 4.75
MAX148/9-04
R L = ∞
CODE = 1010101000 C LOAD = 50pF
MAX148
MAX149
C
LOAD
= 20pF
0
2.25 2.75
SHUTDOWN SUPPLY CURRENT
vs. SUPPLY VOLTAGE
3.0
2.5
1.5
2.0
1.0
0.5
SUPPLY VOLTAGE (V)
SHUTDOWN SUPPLY CURRENT (
µ A)
3.75 5.25 3.25 4.25 4.75
MAX148/9-05
FULL POWER-DOWN
2.5020
2.4990
2.25 2.75
MAX149
INTERNAL REFERENCE VOLTAGE
vs. SUPPLY VOLTAGE
2.5015
2.5005
2.5010
2.5000
2.4995
SUPPLY VOLTAGE (V)
INTERNAL REFERENCE VOLTAGE (V)
3.75 5.25 3.25 4.25 4.75
MAX148/9-06
0.8
0.9
1.0
1.1
1.2
1.3
-60 -20 20 60 100 140
SUPPLY CURRENT vs. TEMPERATURE
TEMPERATURE (°C)
SUPPLY CURRENT (mA)
MAX148/9-07
MAX148
MAX149
R LOAD = ∞
CODE = 1010101000
0
0.4
0.8
1.2
1.6
2.0
-60 -20 20 60 100 140
SHUTDOWN CURRENT
vs. TEMPERATURE
TEMPERATURE (°C)
SHUTDOWN CURRENT (
µ A)
MAX148/9-08
2.494
2.495
2.496
2.497
2.498
2.499
2.500
2.501
-60 -20 20 60 100 140
MAX149
INTERNAL REFERENCE VOLTAGE
vs. TEMPERATURE
TEMPERATURE (°C)
INTERNAL REFERENCE VOLTAGE (V)
MAX148/9-09
V DD = 2.7V
V
DD
= 3.6V
V DD = 5.25V
____________________________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.)