MAX1447 Datasheet, PDF (7/24 Pages) Maxim Integrated Products – 3.5- and 4.5-Digit, Single-Chip ADCs with LED Drivers

3.5- and 4.5-Digit, Single-Chip ADCs
with LED Drivers
Typical Operating Characteristics (continued)
(AV_DD = DV_DD = V_DD = V_LED = +2.7V to +5.25V, GND = 0, GLED = 0, external reference mode, REF+ = 2.048V, REF- = GND,
RANGE = 1, internal clock mode, T_A = +25°C, unless otherwise noted.)
OFFSET ERROR vs. TEMPERATURE
(MAX1447/MAX1498)
0.6
0.5
0.4
0.3
0.2
0.1
0
-0.1
-0.2
0
10 20 30 40 50 60 70
TEMPERATURE (°C)
(±200mV INPUT RANGE) INL vs. OUTPUT CODE
(MAX1447/MAX1498)
1.0
GAIN ERROR vs. SUPPLY VOLTAGE
(MAX1447/MAX1498)
0.08
0.06
0.04
0.02
0
-0.02
-0.04
-0.06
-0.08
-0.10
2.75 3.25 3.75 4.25 4.75 5.25
SUPPLY VOLTAGE (V)
(±2V INPUT RANGE) INL vs. OUTPUT CODE
(MAX1447/MAX1498)
1.0
0
-0.01
-0.02
-0.03
-0.04
-0.05
-0.06
-0.07
-0.08
-0.09
-0.10
0
GAIN ERROR vs. TEMPERATURE
(MAX1447/MAX1498)
10 20 30 40 50 60 70
TEMPERATURE (°C)
NOISE DISTRIBUTION
25
20
0.5
0.5
15
0
0
10
-0.5
-0.5
5
-1.0
-20,000
-10,000
0
10,000
OUTPUT CODE
20,000
INTERNAL REFERENCE VOLTAGE
vs. TEMPERATURE
2.054
2.053
2.052
2.051
2.050
2.049
2.048
2.047
2.046
2.045
2.044
0
10 20 30 40 50 60 70
TEMPERATURE (°C)
-1.0
-20,000
-10,000
0
10,000
OUTPUT CODE
20,000
INTERNAL REFERENCE VOLTAGE
vs. ANALOG SUPPLY VOLTAGE
2.050
2.049
2.048
2.047
2.046
2.045
2.044
2.75 3.25 3.75 4.25 4.75 5.25
SUPPLY VOLTAGE (V)
0
-0.2-0.1 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
NOISE COUNTS
DATA OUTPUT RATE
vs. TEMPERATURE
5.10
5.08
5.06
5.04
5.02
5.00
4.98
4.96
4.94
4.92
4.90
-40 -15
10
35
60
85
TEMPERATURE (°C)
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