ADS7229IPWR datasheet(19/46 Pages) TI

19 / 46 page

SampleRate(kSPS)

1.4

1.2

1.0

0.8

0.6

0.4

0.2

PDMode

SampleRate(kSPS)

1000

100

AutoNAP

Temperature( C)

-15

7.0

6.5

6.0

5.5

5.0

4.5

4.0

3.5

3.0

-40

f =1MSPS

Temperature( C)

-15

0.35

0.30

0.25

0.20

0.15

-40

NAPMode

Code

+VA=5V

4000

1000

2000

3000

0.25

0.20

0.15

0.10

0.05

-0.05

-0.10

-0.15

-0.20

-0.25

Code

+VA=5V

4000

1000

2000

3000

0.25

0.20

0.15

0.10

0.05

-0.05

-0.10

-0.15

-0.20

-0.25

ADS7229

ADS7230

www.ti.com........................................................................................................................................................................................................ SBAS437 – MAY 2008

TYPICAL CHARACTERISTICS (continued)

At –40

°C to +85°C, V

REF [(REF+) – (REF–)] = 5V when +VA = +VBD = 5V or VREF [(REF+) – (REF–)] = 2.5V when +VA =

+VBD = 3V, fSCLK = 42MHz, or VREF = 2.5 when +VA = +VBD = 2.7V, fSCLK = 37.8MHz, and fi = dc for dc curves, fi = 100kHz

for ac curves with 5V supply and fi = 10kHz for ac curves with 3V supply, unless otherwise noted.

ANALOG SUPPLY CURRENT

vs SAMPLE RATE

Figure 36.

Figure 37.

ANALOG SUPPLY CURRENT

vs FREE-AIR TEMPERATURE

Figure 38.

Figure 39.

INTEGRAL NONLINEARITY

DIFFERENTIAL NONLINEARITY

Figure 40.

Figure 41.

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ADS7229IPWR Datasheet(PDF) 19 Page - Texas Instruments

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