Rainbow Electronics MAX1495 - Manual (Page 5)

MAX1491/MAX1493/MAX1495
3.5- and 4.5-Digit, Single-Chip
ADCs with LCD Drivers
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MAX1493/MAX1495 ( ±200mV INPUT RANGE)
INL vs. DISPLAY COUNT
MAX1491/3/5 toc01
DISPLAY COUNT
INL (COUNTS)
10,000 0 -10,000
-0.5
0
0.5
1.0
-1.0
-20,000 20,000
MAX1493/MAX1495 ( ±2V INPUT RANGE)
INL vs. DISPLAY COUNT
MAX1491/3/5 toc02
DISPLAY COUNT
INL (COUNTS)
10,000 0 -10,000
-0.5
0
0.5
1.0
-1.0
-20,000 20,000
NOISE DISTRIBUTION
MAX1491/3/5 toc03
NOISE (COUNTS)
PERCENTAGE OF UNITS (%)
0.8 0.7 0.6 0.5 0.4 0.3 0.2 0.1 0 -0.1
5
10
15
20
25
0
-0.2
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX1491/3/5 toc04
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (
µ
A)
4.75 4.25 3.75 3.25
100
200
300
400
500
600
700
0
2.75 5.25
ANALOG SUPPLY
DIGITAL SUPPLY
MAX1493/MAX1495
GAIN ERROR vs. SUPPLY VOLTAGE
MAX1491/3/5 toc05
SUPPLY VOLTAGE (V)
GAIN ERROR (% FULL SCALE)
4.75 4.25 3.25 3.75
-0.08
-0.04
-0.06
-0.02
0
0.02
0.04
0.06
0.08
-0.10
2.75 5.25
MAX1493/MAX1495
GAIN ERROR vs. TEMPERATURE
MAX1491/3/5 toc06
TEMPERATURE ( °C)
GAIN ERROR (% FULL SCALE)
60 50 30 40 20 10
-0.09
-0.08
-0.07
-0.06
-0.05
-0.04
-0.03
-0.02
-0.01
0
-0.10
0 70
Typical Operating Characteristics
(AV DD = DV DD = 5V, GND = 0, REF+ = 2.048V, REF- = GND, RANGE = DV DD , T A = +25°C.)