MAX1492 Maxim, MAX1492 Datasheet - Page 7
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MAX1492
Manufacturer Part Number
MAX1492
Description
3.5- and 4.5-Digit / Single-Chip ADCs with LCD Drivers
Manufacturer
Maxim
Datasheet
1.MAX1492.pdf
(35 pages)
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(AV
+25°C, unless otherwise noted.)
-0.05
-0.10
-0.15
-0.20
2.050
2.049
2.048
2.047
2.046
2.045
2.044
0.20
0.15
0.10
0.05
300
250
200
150
100
DD
50
0
0
2.75
-2.0
2.75
= DV
-1.5 -1.0 -0.5
SHUTDOWN SUPPLY CURRENT
INTERNAL REFERENCE VOLTAGE
vs. COMMON-MODE VOLTAGE
vs. ANALOG SUPPLY VOLTAGE
DD
3.25
3.25
COMMON-MODE VOLTAGE (V)
ANALOG SUPPLY
DIGITAL SUPPLY
vs. SUPPLY VOLTAGE
= 5V, GND = 0, external reference mode, REF+ = 2.048V, REF- = GND, RANGE bit = 1, internal clock mode, T
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
OFFSET ERROR
3.75
3.75
_______________________________________________________________________________________
0
4.25
4.25
0.5
1.0
4.75
4.75
3.5- and 4.5-Digit, Single-Chip ADCs
1.5
5.25
2.0
5.25
-2.40
-2.42
-2.44
-2.46
-2.48
-2.50
5.10
5.08
5.02
5.00
4.98
4.96
4.94
4.92
4.90
5.06
5.04
Typical Operating Characteristics (continued)
700
600
500
400
300
200
100
0
2.75
-40
0
CHARGE-PUMP OUTPUT VOLTAGE
ANALOG SUPPLY
vs. ANALOG SUPPLY VOLTAGE
10
3.25
DIGITAL SUPPLY
-15
DATA OUTPUT RATE
vs. TEMPERATURE
20
vs. TEMPERATURE
SUPPLY CURRENT
SUPPLY VOLTAGE (V)
TEMPERATURE (°C)
TEMPERATURE (°C)
3.75
10
30
40
4.25
35
50
4.75
60
60
5.25
70
85
with LCD Drivers
2V/div
1V/div
5.020
5.015
5.010
5.005
5.000
4.995
4.990
4.985
4.980
300
250
200
150
100
50
0
2.70
0
DIGITAL SUPPLY
V
DD
V
SHUTDOWN SUPPLY CURRENT
10
V
NEG
3.21
NEG
ANALOG SUPPLY
vs. SUPPLY VOLTAGE
DATA OUTPUT RATE
vs. TEMPERATURE
20
STARTUP SCOPE SHOT
SUPPLY VOLTAGE (V)
TEMPERATURE (°C)
3.72
20ms/div
30
40
4.23
50
4.74
60
A
5.25
70
=
7