2.7V to 3.6V and 4.5V to 5.5V, Low-Power,

4-/8-/12-Channel 2-Wire Serial 8-Bit ADCs

6

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Typical Operating Characteristics

150

250

200

350

300

400

450

SUPPLY CURRENT

vs. VOLTAGE

2.5

3.5

4.0

3.0

4.5

5.0

5.5

A

C

B

D

150

250

200

350

300

400

450

-40

85

SUPPLY CURRENT

vs. TEMPERATURE

TEMPERATURE (

°C)

10

-15

35

60

0

1

3

2

4

5

2.5

3.5

3.0

4.0

4.5

5.0

5.5

SHUTDOWN SUPPLY CURRENT

vs. SUPPLY VOLTAGE

0

1

3

2

4

5

-40

10

-15

35

60

85

SHUTDOWN SUPPLY CURRENT

vs. TEMPERATURE

TEMPERATURE (

°C)

0

100

50

200

150

300

250

350

020

30

10

40

50

60

AVERAGE SUPPLY CURRENT vs.

CONVERSION RATE (INTERNAL CLOCK)

CONVERSION RATE (ksps)

A) INTERNAL REF ALWAYS ON

B) INTERNAL REF AUTOSHUTDOWN

C) EXTERNAL REF

A

C

B

INTERNAL CLOCK MODE

0

150

100

50

300

250

200

450

400

350

500

0100

50

150

200

CONVERSION RATE (EXTERNAL CLOCK)

CONVERSION RATE (ksps)

A

C

B

A) INTERNAL REF ALWAYS ON

B) INTERNAL REF AUTOSHUTDOWN

C) EXTERNAL REF

EXTERNAL CLOCK MODE

0.9900

0.9925

0.9950

0.9975

1.0000

1.0025

1.0050

1.0075

1.0100

4.00

4.50

4.25

4.75

5.00

5.25

5.50

NORMALIZED 4.096V REFERENCE VOLTAGE

vs. SUPPLY VOLTAGE

0.980

0.985

0.990

0.995

1.000

1.005

1.010

1.015

1.020

-40

-15

10

35

60

85

INTERNAL 4.096V REFERENCE VOLTAGE

vs. TEMPERATURE

TEMPERATURE (

°C)

0.9900

0.9925

0.9950

0.9975

1.0000

1.0025

1.0050

1.0075

1.0100

2.5

3.5

3.0

4.0

4.5

5.0

5.5

INTERNAL 2.048V REFERENCE VOLTAGE

vs. SUPPLY VOLTAGE