Rainbow Electronics MAX1249 - Manual (Page 6)

MAX1248/MAX1249
+2.7V to +5.25V, Low-Power, 4-Channel,
Serial 10-Bit ADCs in QSOP-16
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
MAX1248-01
R L = ∞
CODE = 10101010
MAX1249
MAX1248
C LOAD = 20pF
C LOAD = 50pF
C LOAD = 50pF
C LOAD = 20pF
4.0
3.5
0
2.25 2.75
SHUTDOWN SUPPLY CURRENT
vs. SUPPLY VOLTAGE
3.0
2.5
1.5
2.0
1.0
0.5
V DD (V)
SHUTDOWN SUPPLY CURRENT (
µ A)
3.75 5.25 3.25 4.25 4.75
MAX1248/49-02
FULL POWER-DOWN
2.5025
2.4975
2.25 2.75
INTERNAL REFERENCE VOLTAGE
vs. SUPPLY VOLTAGE
2.5000
SUPPLY VOLTAGE (V)
INTERNAL REFERENCE VOLTAGE (V)
3.75 5.25 3.25 4.25 4.75
MAX1248-09
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)
MAX1247-04
MAX1249
MAX1248
R LOAD = ∞
CODE = 1010101000
00
0.10
0.05
0.20
0.15
0.25
0.30
2.25 3.25 3.75 2.75 4.25 4.75 5.25
INTERGRAL NONLINEARITY
vs. SUPPLY VOLTAGE
MAX1248-07
SUPPLY VOLTAGE (V)
INL (LSB)
MAX1248
MAX1249
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)
MAX1248-05
2.494
2.495
2.496
2.497
2.498
2.499
2.500
2.501
-60 -20 -40 20 0 60 40 100 120 80 140
INTERNAL REFERENCE VOLTAGE
vs. TEMPERATURE
TEMPERATURE (°C)
INTERNAL REFERENCE VOLTAGE, VREF
MAX1248-06
V
DD
= 2.7V
V DD = 3.6V
V DD = 5.25V
0
0.15
0.10
0.05
0.20
0.25
0.30
-60 20 0 -40 -20 40 60 80 100 120 140
INTEGRAL NONLINEARITY
vs. TEMPERATURE
MAX1248-08
TEMPERATURE (°C)
INL (LSB)
V DD = 2.7V
MAX1248
MAX1249
0.100
INTEGRAL NONLINEARITY
vs. CODE
0.050
-0.100
0
-0.025
-0.050
-0.075
0.075
0.025
MAX1248-09
INL (LSB)
CODE
256 512 768 1024 0
__________________________________________Typical Operating Characteristics
(V
DD
= 3.0V, VREF = 2.500V, f
SCLK
= 2.0MHz, C
LOAD
= 20pF, T
A
= +25°C, unless otherwise noted.)