Typical operating characteristics – Rainbow Electronics MAX1499 User Manual
Page 7
MAX1497/MAX1499
3.5- and 4.5-Digit, Single-Chip ADCs with LED
Drivers and µC Interface
_______________________________________________________________________________________
7
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)
MAX1497/99 toc01
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
SUPPLY CURRENT
vs. SUPPLY VOLTAGE (MAX1497)
MAX1497/99 toc02
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (
µ
A)
4.74
4.23
3.72
3.21
450
500
550
600
650
700
400
2.70
5.25
SUPPLY CURRENT
vs. TEMPERATURE (MAX1499)
MAX1497/99 toc03
TEMPERATURE (°C)
SUPPLY CURRENT (
µ
A)
60
50
40
30
20
10
100
200
300
400
500
600
700
0
0
70
ANALOG SUPPLY
DIGITAL SUPPLY
SUPPLY CURRENT
vs. TEMPERATURE (MAX1497)
MAX1497/99 toc04
TEMPERATURE (°C)
SUPPLY CURRENT (
µ
A)
60
35
-15
10
610
640
630
620
650
660
670
680
690
700
600
-40
85
SHUTDOWN CURRENT
vs. TEMPERATURE (MAX1499)
MAX1497/99 toc05
TEMPERATURE (°C)
SHUTDOWN CURRENT (
µ
A)
60
50
40
30
20
10
50
100
150
200
250
300
0
0
70
ANALOG SUPPLY
DIGITAL SUPPLY
SHUTDOWN CURRENT
vs. SUPPLY VOLTAGE (MAX1499)
MAX1497/99 toc07
SUPPLY VOLTAGE (V)
SHUTDOWN CURRENT (
µ
A)
4.75
4.25
3.75
3.25
50
100
150
200
250
300
0
2.75
5.25
ANALOG SUPPLY
DIGITAL SUPPLY
SHUTDOWN CURRENT
vs. SUPPLY VOLTAGE (MAX1497)
MAX1497/99 toc08
SUPPLY VOLTAGE (V)
SHUTDOWN CURRENT (
µ
A)
4.74
4.23
3.72
3.21
50
150
100
200
250
300
350
0
2.70
5.25
MAX1499
OFFSET ERROR vs. SUPPLY VOLTAGE
MAX1497/99 toc09
SUPPLY VOLTAGE (V)
OFFSET ERROR (LSB)
4.75
4.25
3.75
3.25
-0.11
-0.06
-0.01
0.04
0.09
0.14
0.19
-0.16
2.75
5.25
SHUTDOWN CURRENT
vs. TEMPERATURE (MAX1497)
MAX1497/99 toc06
TEMPERATURE (°C)
SHUTDOWN CURRENT (
µ
A)
60
35
-15
10
50
150
100
200
250
300
350
0
-40
85