MAX147ACAP(2001) 查看數據表（PDF） - Maxim Integrated

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MAX147ACAP
(Rev.:2001)

+2.7V, Low-Power, 8-Channel, Serial 12-Bit ADCs

Maxim Integrated 

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

Serial 12-Bit ADCs

Typical Operating Characteristics (continued)

(VDD = 3.0V, VREF = 2.5V, fSCLK = 2.0MHz, CLOAD = 20pF, TA = +25°C, unless otherwise noted.)

SUPPLY CURRENT

vs. SUPPLY VOLTAGE

2.00

RL = ∞

CODE = 101010100000

1.75

CLOAD = 50pF

1.50 MAX146

1.25

1.00

CLOAD = 20pF

0.75

MAX147

0.50

2.25 2.75 3.25 3.75 4.25 4.75 5.25

SUPPLY VOLTAGE (V)

SHUTDOWN SUPPLY CURRENT

vs. SUPPLY VOLTAGE

3.5

FULL POWER-DOWN

3.0

2.5

2.0

1.5

1.0

0.5

0

2.25 2.75 3.25 3.75 4.25 4.75 5.25

VDD (V)

2.5020

INTERNAL REFERENCE VOLTAGE

vs. SUPPLY VOLTAGE

2.5015

2.5010

2.5005

2.5000

2.4995

2.4990

2.25 2.75 3.25 3.75 4.25 4.75 5.25

VDD (V)

SUPPLY CURRENT vs. TEMPERATURE

1.3

SHUTDOWN CURRENT

vs. TEMPERATURE

2.0

INTERNAL REFERENCE VOLTAGE

vs. TEMPERATURE

2.501

1.2

MAX146

1.6

1.1

1.2

2.500

2.499

2.498

VDD = 3.6V

VDD = 2.7V

1.0

MAX147

0.9

RLOAD = ∞

CODE = 101010100000

0.8

-60 -20

20

60

100 140

TEMPERATURE (°C)

0.8

0.4

0

-60 -20

20

60 100 140

TEMPERATURE (°C)

2.497

2.496

2.495

2.494

-60

-20 20

60 100 140

TEMPERATURE (°C)

FFT PLOT

20

VDD = 2.7V

0

fIN = 10kHz

fSAMPLE = 133kHz

-20

-40

EFFECTIVE NUMBER OF BITS

vs. FREQUENCY

12.0

VDD = 2.7V

11.8

11.6

-60

11.4

-80

11.2

-100

-120

0

10 20 30 40 50 60 70

FREQUENCY (kHz)

11.0

1

10

100

FREQUENCY (kHz)

6 _______________________________________________________________________________________

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