MAX149ACAP(1998) 데이터 시트보기 (PDF) - Maxim Integrated

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MAX149ACAP
(Rev.:1998)

+2.7V to +5.25V, Low-Power, 8-Channel, Serial 10-Bit ADCs

Maxim Integrated 

+2.7V to +5.25V, Low-Power, 8-Channel,

Serial 10-Bit ADCs

____________________________Typical Operating Characteristics (continued)

(VDD = 3.0V, VREF = 2.500V, fSCLK = 2.0MHz, CLOAD = 20pF, TA = +25°C, unless otherwise noted.)

SUPPLY CURRENT

vs. SUPPLY VOLTAGE

2.00

RL = ∞

CODE = 1010101000

1.75

CLOAD = 50pF

SHUTDOWN SUPPLY CURRENT

vs. SUPPLY VOLTAGE

3.0

FULL POWER-DOWN

2.5

2.5020

MAX149

INTERNAL REFERENCE VOLTAGE

vs. SUPPLY VOLTAGE

2.5015

1.50 MAX149

2.0

1.25

1.5

2.5010

2.5005

1.00

CLOAD = 20pF

0.75

MAX148

0.50

2.25 2.75 3.25 3.75 4.25 4.75 5.25

SUPPLY VOLTAGE (V)

1.0

0.5

0

2.25 2.75 3.25 3.75 4.25 4.75 5.25

SUPPLY VOLTAGE (V)

2.5000

2.4995

2.4990

2.25 2.75 3.25 3.75 4.25 4.75 5.25

SUPPLY VOLTAGE (V)

SUPPLY CURRENT vs. TEMPERATURE

1.3

1.2

MAX149

SHUTDOWN CURRENT

vs. TEMPERATURE

2.0

1.6

1.1

1.2

1.0

0.8

MAX148

0.9

0.4

RLOAD = ∞

CODE = 1010101000

0.8

-60 -20

20

60 100 140

0

-60 -20 20

60 100 140

TEMPERATURE (°C)

MAX149

TEMPERATURE (°C)

INTERNAL REFERENCE VOLTAGE

vs. TEMPERATURE

2.501

VDD = 5.25V

2.500

VDD = 3.6V

2.499

2.498

VDD = 2.7V

2.497

2.496

2.495

2.494

-60

-20 20

60 100 140

TEMPERATURE (°C)

6 _______________________________________________________________________________________

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