MAX1497EPI datasheet(8/33 Pages) MAXIM

Part #	MAX1497EPI

Description	3.5- and 4.5-Digit, Single-Chip ADCs with LED Drivers and 關C Interface

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Manufacturer	MAXIM [Maxim Integrated Products]

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INTERNAL REFERENCE VOLTAGE

vs. TEMPERATURE

TEMPERATURE (°C)

60

50

40

30

20

10

2.046

2.045

2.047

2.049

2.048

2.051

2.050

2.053

2.052

2.054

2.044

070

INTERNAL REFERENCE VOLTAGE

vs. ANALOG SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

4.75

4.25

3.75

3.25

2.045

2.046

2.047

2.048

2.049

2.050

2.044

2.75

5.25

3.5- and 4.5-Digit, Single-Chip ADCs with LED

Drivers and µC Interface

8

_______________________________________________________________________________________

Typical Operating Characteristics (continued)

(AVDD = DVDD = VDD = +2.7V to +5.25V, VLED = +2.7V to +5.25V, GND = 0, GLED = 0, external reference mode, REF+ = 2.048V,

REF- = GND, CREF+ = CREF- = 0.1µF, RANGE bit = 1, internal clock mode, CVNEG = 0.1µF. TA = +25°C, unless otherwise noted.)

MAX1499

OFFSET ERROR vs. TEMPERATURE

TEMPERATURE (°C)

60

50

10

20

30

40

-0.1

0

0.1

0.2

0.3

0.4

0.5

0.6

-0.2

070

MAX1499

GAIN ERROR vs. SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

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

MAX1499

GAIN ERROR vs. TEMPERATURE

TEMPERATURE (°C)

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

070

MAX1499

(±200mV INPUT RANGE) INL vs. OUTPUT CODE

OUTPUT CODE

10,000

0

-10,000

-0.5

0

0.5

1.0

-1.0

-20,000

20,000

MAX1499

(±2V INPUT RANGE) INL vs. OUTPUT CODE

OUTPUT CODE

10,000

0

-10,000

-0.5

0

0.5

1.0

-1.0

-20,000

20,000

NOISE DISTRIBUTION

NOISE (LSB)

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

DATA OUTPUT RATE

vs. TEMPERATURE

TEMPERATURE (°C)

60

35

-15

10

4.92

4.98

4.96

4.94

5.00

5.02

5.04

5.06

5.08

5.10

4.90

-40

85

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