ADS1234IPWR datasheet(11/34 Pages) TI1

No. de pieza	ADS1234IPWR

Descripción Electrónicos	24-Bit Analog-to-Digital Converter For Bridge Sensors

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Fabricante Electrónico	TI1 [Texas Instruments]

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V

IN (V)

1000

900

800

700

600

500

400

300

200

100

0

2.5

−2.5 −2.0 −1.5

−0.5

−1.0

1.0

0

0.5

1.5

2.0

PGA = 1

Data Rate = 10SPS

V

IN (mV)

50

45

40

35

30

25

20

15

10

5

0

19

−19 −14.25 −9.5 −4.75

4.75

0

9.5

14.25

PGA = 128

Data Rate = 10SPS

V

IN (V)

5

4

3

2

1

0

−1

−2

−3

−4

−5

25

20

15

10

5

0

−5

−10

−15

−20

−25

2.5

−2.5 −2.0 −1.5

−0.5

−1.0

1.0

0

0.5

1.5

2.0

PGA = 1

V

IN (mV)

10

8

6

4

2

0

−2

−4

−6

−8

−10

390.625

312.5

234.375

156.25

78.125

0

−78.125

−156.25

−234.375

−312.5

−390.625

19

−19 −14.25 −9.5 −4.75

4.75

0

9.5

14.25

PGA = 128

Temperature (

_C)

2000

1600

1200

800

400

0

110

−50

−30

−10

10

30

50

70

90

Normal Mode, PGA = 64, 128

Normal Mode, PGA = 1, 2

Temperature (

_C)

120

100

80

60

40

20

0

110

−50

−30

−10

10

30

50

70

90

Normal Mode, PGA = 64, 128

Normal Mode, PGA = 1, 2

Sleep Mode, All PGAs

ADS1232

ADS1234

SBAS350F – JUNE 2005 – REVISED FEBRUARY 2008

TYPICAL CHARACTERISTICS (continued)

At TA = +25°C, AVDD = DVDD = VREFP = 5V, and VREFN = AGND, unless otherwise noted.

NOISE vs INPUT SIGNAL

Figure 19.

Figure 20.

INTEGRAL NONLINEARITY

vs INPUT SIGNAL

Figure 21.

Figure 22.

ANALOG CURRENT

DIGITAL CURRENT

vs TEMPERATURE

Figure 23.

Figure 24.

11

Product Folder Link(s): ADS1232 ADS1234

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