MAX1491 Datasheet, PDF (5/25 Pages) Maxim Integrated Products – 3.5- and 4.5-Digit, Single-Chip ADCs with LCD Drivers

3.5- and 4.5-Digit, Single-Chip
ADCs with LCD Drivers
Typical Operating Characteristics
(AV_DD = DV_DD = 5V, GND = 0, REF+ = 2.048V, REF- = GND, RANGE = DV_DD, T_A = +25°C.)
MAX1493/MAX1495 (±200mV INPUT RANGE)
INL vs. DISPLAY COUNT
1.0
MAX1493/MAX1495 (±2V INPUT RANGE)
INL vs. DISPLAY COUNT
1.0
0.5
0.5
0
0
-0.5
-0.5
-1.0
-20,000
-10,000
0
10,000
DISPLAY COUNT
20,000
-1.0
-20,000
-10,000
0
10,000
DISPLAY COUNT
20,000
NOISE DISTRIBUTION
25
20
15
10
5
0
-0.2-0.1 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8
NOISE (COUNTS)
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
700
600
500
ANALOG SUPPLY
400
300
DIGITAL SUPPLY
200
100
0
2.75 3.25 3.75 4.25 4.75 5.25
SUPPLY VOLTAGE (V)
MAX1493/MAX1495
GAIN ERROR vs. SUPPLY VOLTAGE
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)
0
-0.01
-0.02
-0.03
-0.04
-0.05
-0.06
-0.07
-0.08
-0.09
-0.10
0
MAX1493/MAX1495
GAIN ERROR vs. TEMPERATURE
10 20 30 40 50 60 70
TEMPERATURE (°C)
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