ADS7846IRGVR datasheet(6/30 Pages) BURR-BROWN

No. de pieza	ADS7846IRGVR

Descripción Electrónicos	TOUCH SCREEN CONTROLLER

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Fabricante Electrónico	BURR-BROWN [Burr-Brown (TI)]

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ADS7846

6

SBAS125H

www.ti.com

TYPICAL CHARACTERISTICS (Cont.)

At TA = +25°C, +VCC = +2.7V, VREF = External +2.5V, fSAMPLE = 125kHz, and fCLK = 16 • fSAMPLE = 2MHz, unless otherwise noted.

REFERENCE CURRENT vs SAMPLE RATE

75

0

125

25

50

100

Sample Rate (kHz)

14

12

10

8

6

4

2

0

REFERENCE CURRENT vs TEMPERATURE

20

–40

100

–20

0

40

Temperature (

°C)

18

16

14

12

10

8

6

60

80

SWITCH-ON RESISTANCE vs TEMPERATURE

(X+, Y+: +V

CC to Pin; X–, Y–: Pin to GND)

20

–40

100

–20

X+

Y+

Y–

X–

40

Temperature (

°C)

1

8

7

6

5

4

3

2

60

80

0

2.4920

2.4915

2.4910

2.4905

2.4900

2.4895

2.4890

2.4885

2.4880

2.4875

Temperature (

°C)

INTERNAL V

REF vs TEMPERATURE

SWITCH-ON RESISTANCE vs +V

CC

(X+, Y+: +V

CC to Pin; X–, Y–: Pin to GND)

3.5

2.0

5.0

2.5

X+

Y+

Y–

X–

4.0

+V

CC (V)

1

8

7

6

5

4

3

2

4.5

3.0

2.0

1.8

1.6

1.4

1.2

1.0

0.8

0.6

0.4

0.2

0

20

40

60

80

100

120

140

160

180

200

Sampling Rate (kHz)

MAXIMUM SAMPLING RATE vs R

IN

INL: R = 2k

INL: R = 500

DNL: R = 2k

DNL: R = 500

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ADS7846IRGVR Datasheet(PDF) 6 Page - Burr-Brown (TI)

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