ADS7924_14 datasheet(6/45 Pages) TI1

Part #	ADS7924

Description	2.2V, 12-Bit, 4-Channel, microPOWER??ANALOG-TO-DIGITAL CONVERTER WITH I2C INTERFACE

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Manufacturer	TI1 [Texas Instruments]

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14

12

10

8

6

4

2

0

-40.0

105.0

Temperature( C)

°

-25.5

Auto-SingleMode

t

=2.5ms

A

=5.0V

FastI CInterfaceMode

VDD=DVDD

CYCLE

2

AnalogCurrent

DigitalCurrent

-11.0

3.5

18.0

32.5

47.0

61.5

76.0

90.5

1000

100

10

1

0.01

0.1

1000

t

(ms)

CYCLE

1

10

100

AVDD=2.2V

t

=0V

t

=6 s

PU

ACQ

m

Auto-ScanModes

(4-ChannelMeasurements)

Auto-SingleModes

(1-ChannelMeasurements)

10000

1000

100

10

1

0.01

0.1

1000

t

(ms)

CYCLE

1

10

100

AVDD=5V

t

=0V

t

=6 s

PU

ACQ

m

Auto-SingleModes

(1-ChannelMeasurements)

Auto-ScanModes

(4-ChannelMeasurements)

10

9

8

7

6

5

4

3

2

1

0

2.0

2.5

3.0

6.0

AVDDSupplyVoltage(V)

3.5

4.0

5.0

4.5

5.5

Auto-SingleMode

t

=2.5ms

CYCLE

0

1

2

3

4

5

6

7

8

9

10

-

2

3

6

AVDDSupplyVoltage(V)

4

30UnitsAcrossTwoLots

5

Mean+ s

Mean

Mean - s

0

1

2

3

4

5

6

7

8

9

10

-

Temperature( C)

°

AVDD=2.2V

-40.0

105.0

-25.5 -11.0

3.5

18.0

32.5

47.0

61.5

76.0

90.5

ADS7924

SBAS482A – JANUARY 2010 – REVISED MAY 2010

www.ti.com

TYPICAL CHARACTERISTICS

At TA = +25°C, unless otherwise noted.

CURRENT vs TEMPERATURE

AVERAGE POWER DISSIPATION vs CYCLE TIME

Figure 2.

Figure 3.

AVERAGE POWER DISSIPATION vs CYCLE TIME

ANALOG SUPPLY CURRENT vs SUPPLY VOLTAGE

Figure 4.

Figure 5.

TYPICAL GAIN ERROR vs AVDD VOLTAGE

GAIN ERROR DRIFT

Figure 6.

Figure 7.

6

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