Rainbow-electronics MAX159 Manual do Utilizador descarregar pdf (Página 5)

MAX157/MAX159

+2.7V, Low-Power, 2-Channel,

108ksps, Serial 10-Bit ADCs in 8-Pin µMAX

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500

700

900

1100

1300

1500

2.5 3.0 3.5 4.0 4.5 5.0 5.5

SUPPLY CURRENT

vs. SUPPLY VOLTAGE

MAX157/159 toc01

(V)

SUPPLY CURRENT (µA)

REF

= V

= ∞

= 50pF

CODE = 1010101000

500

750

1000

1250

1500

-60 -20 0-40 20 40 60 80 100 120 140

SUPPLY CURRENT

vs. TEMPERATURE

MAX157/159 toc02

TEMPERATURE (°C)

SUPPLY CURRENT (µA)

REF

= V

= ∞

= 50pF

CODE = 1010101000

10,000

0.1

0.1 1 100 1k

10k

10 100k

SUPPLY CURRENT

vs. SAMPLING RATE

MAX157/159 toc03

SAMPLING RATE (sps)

SUPPLY CURRENT (µA)

100

1000

REF

= V

CODE = 1010101000

= 50pF

400

200

600

800

1000

2.5 3.0 3.5 4.0 4.5 5.0 5.5

SHUTDOWN CURRENT

vs. SUPPLY VOLTAGE

MAX157/159 toc04

(V)

SHUTDOWN CURRENT (nA)

REF

= V

0.05

0.10

0.15

0.20

-60 -10 40 90-35 15 65 140115

OFFSET ERROR vs. TEMPERATURE

MAX157/159 toc07

TEMPERATURE (°C)

OFFSET ERROR (LSB)

200

400

600

800

1000

-60 20 40-20 0-40 60 80 100 120 140

SHUTDOWN CURRENT

vs. TEMPERATURE

MAX157/159 toc05

TEMPERATURE (°C)

SHUTDOWN CURRENT (nA)

REF

= V

0.05

0.10

0.15

0.20

2.5 3.0 3.5 4.0 4.5 5.0 5.5

OFFSET ERROR vs. SUPPLY VOLTAGE

MAX157/159 toc06

(V)

OFFSET ERROR (LSB)

Typical Operating Characteristics

= +3.0V, V

REF

= 2.5V, 0.1µF capacitor at REF, f

SCLK

= 2.17MHz, 16 clocks/conversion cycle (108ksps); CH- = GND for

MAX159; T

= +25°C, unless otherwise noted.)

1 2 3 4 5 6 7 8 9 10 ... 15 16

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