MAX1233_08 datasheet(9/44 Pages) MAXIM

Part #	MAX1233

Description	±15kV ESD-Protected Touch-Screen Controllers Include DAC and Keypad Controller

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Manufacturer	MAXIM [Maxim Integrated Products]

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-0.050

-0.075

-0.100

-0.025

0

0.025

0.050

0.075

0

100

200

300

DAC INTEGRAL NONLINEARITY vs. CODE

CODE

50

150

250

DAC DIFFERENTIAL NONLINEARITY

vs. OUTPUT CODE

OUTPUT CODE

250

200

150

100

50

-0.075

-0.500

-0.025

0

0.025

0.050

0.075

-0.100

0

300

Typical Operating Characteristics (continued)

(AVDD = DVDD = 3V (MAX1233) or 5V (MAX1234), external VREF = +2.5V (MAX1233), external VREF = +4.096V (MAX1234), fSCLK =

10MHz (50% duty cycle), fSAMPLE = 20ksps, CLOAD = 50pF, 0.1µF capacitor at REF, TA = +25°C, unless otherwise noted.)

±15kV ESD-Protected Touch-Screen

Controllers Include DAC and Keypad Controller

_______________________________________________________________________________________

9

ADC EXTERNAL REFERENCE INPUT

CURRENT vs. SAMPLING RATE

fSAMPLE (Hz)

10k

1k

2

4

6

8

0

100

100k

MAX1233

VREF = +2.5V

ADC SUPPLY CURRENT

vs. SAMPLING RATE

fSAMPLE (Hz)

10k

100

1

10

100

1000

0.1

1

100k

10

1k

ADC SUPPLY CURRENT

vs. SUPPLY VOLTAGE

AVDD (V)

50

100

150

200

250

0

5.2

4.7

4.2

3.7

3.2

2.7

EXTERNAL REF

fSAMPLE = 20ksps

ADC SUPPLY CURRENT

vs. TEMPERATURE

TEMPERATURE (

°C)

20

40

60

80

100

120

140

0

AVDD = +3V

80

60

-20

0

20

40

-40

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MAX1233 Datasheet(PDF) 9 Page - Maxim Integrated Products

MAX1233 Datasheet(HTML) 9 Page - Maxim Integrated Products

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