3.5- and 4.5-Digit, Single-Chip

ADCs with LCD Drivers

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5

MAX1493/MAX1495 (

±200mV INPUT RANGE)

INL vs. DISPLAY COUNT

DISPLAY COUNT

10,000

0

-10,000

-0.5

0

0.5

1.0

-1.0

-20,000

20,000

MAX1493/MAX1495 (

±2V INPUT RANGE)

INL vs. DISPLAY COUNT

DISPLAY COUNT

10,000

0

-10,000

-0.5

0

0.5

1.0

-1.0

-20,000

20,000

NOISE DISTRIBUTION

NOISE (COUNTS)

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

SUPPLY CURRENT

vs. SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

4.75

4.25

3.75

3.25

100

200

300

400

500

600

700

0

2.75

5.25

ANALOG SUPPLY

DIGITAL SUPPLY

MAX1493/MAX1495

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

MAX1493/MAX1495

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

Typical Operating Characteristics