Typical Operating Characteristics

otherwise noted.)

2.375V to 5.25V, 4-Wire Touch-Screen Controller

with Internal Reference and Temperature Sensor

_______________________________________________________________________________________

5

INTEGRAL NONLINEARITY

vs. DIGITAL OUTPUT CODE

OUTPUT CODE

3500

3000

2000 2500

1000 1500

500

-0.3

-0.2

-0.1

0

0.1

0.2

0.3

0.4

0.5

-0.4

0

4000

DIFFERENTIAL NONLINEARITY

vs. DIGITAL OUTPUT CODE

OUTPUT CODE

3500

3000

2000 2500

1000 1500

500

-0.6

-0.4

-0.2

0

0.2

0.4

0.6

0.8

1.0

-1.0

-0.8

0

4000

CHANGE IN OFFSET ERROR

vs. SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

5.0

4.5

3.0

3.5

4.0

-1.5

-1.0

-0.5

0

0.5

1.0

1.5

2.0

-2.0

2.5

5.5

CHANGE IN OFFSET ERROR

vs. TEMPERATURE

TEMPERATURE (°C)

65

50

35

20

5

-10

-25

-0.5

0

0.5

1.0

-1.0

-40

80

CHANGE IN GAIN ERROR

vs. SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

5.0

4.5

4.0

3.5

3.0

-2

-1

0

1

2

3

-3

2.5

5.5

CHANGE IN GAIN ERROR

vs. TEMPERATURE

TEMPERATURE (°C)

65

50

35

20

5

-10

-25

-1.5

-1.0

-0.5

0

0.5

1.0

-2.0

-40

80

SWITCH ON-RESISTANCE vs. SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

5.0

4.5

4.0

3.5

3.0

2

4

6

8

10

12

14

0

2.5

5.5

X-

Y-

X+

Y+

SWITCH ON-RESISTANCE vs. TEMPERATURE

TEMPERATURE (°C)

35

20

5

-10

-25

2

1

3

7

6

5

4

8

9

10

11

12

0

-40

50

65

80

X-

Y-

X+

Y+

INTERNAL REFERENCE

vs. SUPPLY VOLTAGE

SUPPLY VOLTAGE (V)

5.0

4.5

4.0

3.5

3.0

2.5

2.1

2.2

2.3

2.4

2.5

2.6

2.0

2.0

5.5