MAX145ACUA datasheet(5/16 Pages) MAXIM

Part #	MAX145ACUA

Description	2.7V, Low-Power, 2-Channel, 108ksps, Serial 12-Bit ADCs in 8-Pin 關MAX

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Manufacturer	MAXIM [Maxim Integrated Products]

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5 / 16 page

+2.7V, Low-Power, 2-Channel, 108ksps,

Serial 12-Bit ADCs in 8-Pin µMAX

_______________________________________________________________________________________

5

500

700

900

1100

1300

1500

2.5

3.0

3.5

4.0

4.5

5.5

5.0

SUPPLY CURRENT

vs. SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

VREF = VDD

RL = ∞

CL = 50pF

CODE = 101010100000

0

200

400

600

800

1000

-60

20 40

-20

0

-40

60 80 100 120 140

SHUTDOWN CURRENT

vs. TEMPERATURE

TEMPERATURE (°C)

VREF = VDD

500

750

1250

1000

1500

-60

-20

0

20 40

-40

60 80 100 120 140

SUPPLY CURRENT

vs. TEMPERATURE

TEMPERATURE (°C)

VREF = VDD

RL = ∞

CL = 50pF

CODE = 101010100000

0

200

400

600

800

1000

SHUTDOWN CURRENT

vs. SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

2.5

3.0

3.5

4.0

4.5

5.5

5.0

VREF = VDD

Typical Operating Characteristics

(VDD = +3.0V, VREF = 2.5V, 0.1µF at REF, fSCLK = 2.17MHz, 16 clocks/conversion cycle (108ksps), CH- = GND for MAX145, TA = +25°C,

unless otherwise noted.)

SUPPLY CURRENT vs.

SAMPLING RATE

SAMPLING RATE (sps)

10,000

0.1

1

10

100

1000

0.1

100

1k

10k

1

10

100k

VDD = VREF

CL = 20pF

CODE = 101010100000

0

0.2

0.4

0.6

0.8

1.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

OFFSET ERROR

vs. SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

0

0.2

0.1

0.4

0.3

0.6

0.5

0.7

0.9

0.8

1.0

OFFSET ERROR

vs. TEMPERATURE

TEMPERATURE (°C)

-60

-10

15

-35

40

65

90

115 140

-0.5

-0.3

-0.4

-0.1

-0.2

0.1

0

0.2

0.4

0.3

0.5

2.5

3.5

3.0

4.0

4.5

5.0

5.5

GAIN ERROR

vs. SUPPLY VOLTAGE

VDD (V)

-0.5

-0.3

-0.4

-0.1

-0.2

0.1

0

0.2

0.4

0.3

0.5

GAIN ERROR

vs. TEMPERATURE

TEMPERATURE (°C)

-60

-10

15

-35

40

65

90

115 140

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