+2.7V to +5.25V, Low-Power, 4-Channel,
Serial 10-Bit ADCs in QSOP-16
MAX1248/MAX1249
__________________________________________Typical Operating Characteristics
(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
MAX1248-01
SHUTDOWN SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX1248/49-02
INTERNAL REFERENCE VOLTAGE
vs. SUPPLY VOLTAGE
MAX1248-09
2.00
1.75
SUPPLY CURRENT (mA)
1.50
1.25
SHUTDOWN SUPPLY CURRENT (µA)
C
LOAD
= 50pF
C
LOAD
= 20pF
3.0
2.5
2.0
1.5
1.0
0.5
MAX1248
INTERNAL REFERENCE VOLTAGE (V)
R
L
=
∞
CODE = 10101010
4.0
3.5
FULL POWER-DOWN
2.5025
2.5000
MAX1249
1.00
C
LOAD
= 50pF
C
LOAD
= 20pF
0.75
0.50
2.25
2.75
3.25
3.75
4.25
4.75
5.25
0
2.25
2.75
3.25
3.75
V
DD
(V)
4.25
4.75
5.25
2.4975
2.25
2.75
3.25
3.75
4.25
4.75
5.25
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
SUPPLY CURRENT vs. TEMPERATURE
MAX1247-04
SHUTDOWN CURRENT
vs. TEMPERATURE
MAX1248-05
INTERNAL REFERENCE VOLTAGE
vs. TEMPERATURE
INTERNAL REFERENCE VOLTAGE, VREF
V
DD
= 5.25V
2.500
2.499
V
DD
= 2.7V
2.498
2.497
2.496
2.495
2.494
V
DD
= 3.6V
MAX1248-06
1.3
MAX1248
2.0
2.501
SHUTDOWN CURRENT (µA)
1.2
SUPPLY CURRENT (mA)
1.6
1.1
1.2
1.0
MAX1249
0.9
R
LOAD
=
∞
CODE = 1010101000
-60
-20
20
60
100
140
0.8
0.4
0.8
0
-60
-20
20
60
100
140
TEMPERATURE (°C)
-60 -40 -20 0
20 40 60 80 100 120 140
TEMPERATURE (°C)
TEMPERATURE (°C)
INTERGRAL NONLINEARITY
vs. SUPPLY VOLTAGE
MAX1248-07
INTEGRAL NONLINEARITY
vs. TEMPERATURE
V
DD
= 2.7V
0.25
0.20
INL (LSB)
INL (LSB)
0.15
0.10
0.05
MAX1248-08
INTEGRAL NONLINEARITY
vs. CODE
0.075
0.050
MAX1248-09
0.30
0.25
0.20
INL (LSB)
0.15
0.10
0.05
MAX1249
00
2.25
2.75
3.25
3.75
4.25
4.75
MAX1248
0.30
0.100
0.025
0
-0.025
MAX1248
MAX1249
-0.050
-0.075
-0.100
0
5.25
-60 -40 -20 0
20 40 60 80 100 120 140
SUPPLY VOLTAGE (V)
TEMPERATURE (°C)
0
256
512
CODE
768
1024
6
_______________________________________________________________________________________
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
