+2.7V to +5.25V, Low-Power, 4-Channel,

Serial 10-Bit ADCs in QSOP-16

6

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2.00

0.50

2.25

2.75

SUPPLY CURRENT

vs. SUPPLY VOLTAGE

1.75

1.25

1.50

1.00

0.75

SUPPLY VOLTAGE (V)

3.75

5.25

3.25

4.25

4.75

CODE = 10101010

MAX1249

MAX1248

4.0

3.5

0

2.25

2.75

SHUTDOWN SUPPLY CURRENT

vs. SUPPLY VOLTAGE

3.0

2.5

1.5

2.0

1.0

0.5

3.75

5.25

3.25

4.25

4.75

FULL POWER-DOWN

2.5025

2.4975

2.25

2.75

INTERNAL REFERENCE VOLTAGE

vs. SUPPLY VOLTAGE

2.5000

SUPPLY VOLTAGE (V)

3.75

5.25

3.25

4.25

4.75

0.8

0.9

1.0

1.1

1.2

1.3

-60

-20

20

60

100

140

SUPPLY CURRENT vs. TEMPERATURE

TEMPERATURE (°C)

MAX1249

MAX1248

CODE = 1010101000

00

0.10

0.05

0.20

0.15

0.25

0.30

2.25

3.25

3.75

2.75

4.25

4.75

5.25

INTERGRAL NONLINEARITY

vs. SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

MAX1248

MAX1249

0

0.4

0.8

1.2

1.6

2.0

-60

-20

20

60

100

140

SHUTDOWN CURRENT

vs. TEMPERATURE

TEMPERATURE (°C)

2.494

2.495

2.496

2.497

2.498

2.499

2.500

2.501

-60

-20

-40

20

0

60

40

100 120

80

140

INTERNAL REFERENCE VOLTAGE

vs. TEMPERATURE

TEMPERATURE (°C)

0

0.15

0.10

0.05

0.20

0.25

0.30

-60

20

0

-40 -20

40 60 80 100 120 140

INTEGRAL NONLINEARITY

vs. TEMPERATURE

TEMPERATURE (°C)

MAX1248

MAX1249

0.100

INTEGRAL NONLINEARITY

vs. CODE

0.050

-0.100

0

-0.025

-0.050

-0.075

0.075

0.025

CODE

256

512

768

1024

0

__________________________________________Typical Operating Characteristics