MAX1495(2003) 查看數據表（PDF） - Maxim Integrated

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MAX1495
(Rev.:2003)

3.5- and 4.5-Digit, Single-Chip ADCs with LCD Drivers

Maxim Integrated 

3.5- and 4.5-Digit, Single-Chip

ADCs with LCD Drivers

Typical Operating Characteristics (continued)

(AVDD = DVDD = 5V, GND = 0, REF+ = 2.048V, REF- = GND, RANGE = DVDD, TA = +25°C.)

INTERNAL REFERENCE VOLTAGE

vs. TEMPERATURE

2.054

2.053

2.052

2.051

2.050

2.049

2.048

2.047

2.046

2.045

2.044

0

10 20 30 40 50 60 70

TEMPERATURE (°C)

INTERNAL REFERENCE VOLTAGE

vs. ANALOG SUPPLY VOLTAGE

2.050

2.049

2.048

2.047

2.046

2.045

2.044

2.75 3.25 3.75 4.25 4.75 5.25

SUPPLY VOLTAGE (V)

SUPPLY CURRENT

vs. TEMPERATURE

700

600

ANALOG SUPPLY

500

400

300

DIGITAL SUPPLY

200

100

0

0 10 20 30 40 50 60 70

TEMPERATURE (°C)

CHARGE-PUMP OUTPUT VOLTAGE

vs. ANALOG SUPPLY VOLTAGE

-2.40

-2.42

-2.44

-2.46

VNEG STARTUP SCOPE SHOT

VDD

2V/div

1V/div

VNEG

-2.48

-2.50

2.75 3.25 3.75 4.25 4.75 5.25

SUPPLY VOLTAGE (V)

CNEG = 0.1µF

20ms/div

OFFSET ERROR

vs. COMMON-MODE VOLTAGE

0.20

0.15

0.10

0.05

0

-0.05

-0.10

-0.15

-0.20

-2.0 -1.5 -1.0 -0.5 0 0.5 1.0 1.5 2.0

COMMON-MODE VOLTAGE (V)

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