Multichannel, True-Differential,

Serial, 14-Bit ADCs

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7

INL vs. OUTPUT CODE

OUTPUT CODE

12288

8192

4096

-1.0

-0.5

0

0.5

1.0

1.5

-1.5

0

16384

DNL vs. OUTPUT CODE

OUTPUT CODE

12288

8192

4096

-1.0

-0.5

0

0.5

1.0

1.5

-1.5

0

16384

SUPPLY CURRENT vs. SUPPLY VOLTAGE

(MAX1147/MAX1149)

SUPPLY VOLTAGE (V)

3.3

3.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0

0

2.7

3.6

INTERNAL REFERENCE

EXTERNAL REFERENCE

SUPPLY CURRENT vs. SUPPLY VOLTAGE

(MAX1146/MAX1148)

SUPPLY VOLTAGE (V)

5.20

5.15

5.05 5.10

4.85 4.90 4.95 5.00

4.80

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0

0

4.75

5.25

INTERNAL REFERENCE

EXTERNAL REFERENCE

SHUTDOWN SUPPLY CURRENT

vs. SUPPLY VOLTAGE (MAX1147/MAX1149)

SUPPLY VOLTAGE (V)

3.5

3.4

3.2 3.3

2.9 3.0 3.1

2.8

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1.6

1.8

0

2.7

3.6

SUPPLY CURRENT

vs. CONVERSION RATE

CONVERSION RATE (ksps)

100

10

1

0.1

200

400

600

800

1000

1200

0

0.01

1000

FAST POWER-DOWN

FULL

POWER-DOWN

SUPPLY CURRENT vs. TEMPERATURE

TEMPERATURE (°C)

60

35

10

-15

0.5

1.0

1.5

2.0

2.5

0

-40

85

MAX1146/MAX1148 INTERNAL REFERENCE

MAX1147/MAX1149 INTERNAL REFERENCE

MAX1146/MAX1148 EXTERNAL REFERENCE

MAX1147/MAX1149 EXTERNAL REFERENCE

SHUTDOWN SUPPLY CURRENT

vs. TEMPERATURE

TEMPERATURE (°C)

60

35

10

-15

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

0

-40

85

MAX1146/MAX1148

MAX1147/MAX1149

Typical Operating Characteristics

SHUTDOWN SUPPLY CURRENT

vs. SUPPLY VOLTAGE (MAX1146/MAX1148)

SUPPLY VOLTAGE (V)

5.15

5.05

4.95

4.85

0.05

0.10

0.15

0.20

0.25

0.30

0.35

0.40

0.45

0

4.75

5.25