MAX1497 Datasheet, PDF (7/33 Pages) Maxim Integrated Products – 3.5- and 4.5-Digit, Single-Chip ADCs with LED Drivers and μC Interface

3.5- and 4.5-Digit, Single-Chip ADCs with LED
Drivers and µC Interface
Typical Operating Characteristics
(AV_DD = DV_DD = V_DD = +2.7V to +5.25V, V_LED = +2.7V to +5.25V, GND = 0, GLED = 0, external reference mode, REF+ = 2.048V,
REF- = GND, C_REF+ = C_REF- = 0.1µF, RANGE bit = 1, internal clock mode, C_VNEG = 0.1µF. T_A = +25°C, unless otherwise noted.)
SUPPLY CURRENT
vs. SUPPLY VOLTAGE (MAX1499)
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)
SUPPLY CURRENT
vs. TEMPERATURE (MAX1497)
700
690
680
670
660
650
640
630
620
610
600
-40 -15
10
35
60
85
TEMPERATURE (^°C)
SHUTDOWN CURRENT
vs. SUPPLY VOLTAGE (MAX1499)
300
250
ANALOG SUPPLY
200
150
100
50
DIGITAL SUPPLY
0
2.75 3.25 3.75 4.25 4.75 5.25
SUPPLY VOLTAGE (V)
SUPPLY CURRENT
vs. SUPPLY VOLTAGE (MAX1497)
700
650
600
550
500
450
400
2.70 3.21 3.72 4.23 4.74 5.25
SUPPLY VOLTAGE (V)
SHUTDOWN CURRENT
vs. TEMPERATURE (MAX1499)
300
250
ANALOG SUPPLY
200
150
100
50
DIGITAL SUPPLY
0
0 10 20 30 40 50 60 70
TEMPERATURE (°C)
SHUTDOWN CURRENT
vs. SUPPLY VOLTAGE (MAX1497)
350
300
250
200
150
100
50
0
2.70 3.21 3.72 4.23 4.74 5.25
SUPPLY VOLTAGE (V)
SUPPLY CURRENT
vs. TEMPERATURE (MAX1499)
700
600
ANALOG SUPPLY
500
400
300
DIGITAL SUPPLY
200
100
0
0
350
10 20 30 40 50 60 70
TEMPERATURE (°C)
SHUTDOWN CURRENT
vs. TEMPERATURE (MAX1497)
300
250
200
150
100
50
0
-40 -15 10
35
60
85
TEMPERATURE (^°C)
MAX1499
OFFSET ERROR vs. SUPPLY VOLTAGE
0.19
0.14
0.09
0.04
-0.01
-0.06
-0.11
-0.16
2.75 3.25 3.75 4.25 4.75 5.25
SUPPLY VOLTAGE (V)
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