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MAX1233_05 Datasheet, PDF (8/45 Pages) Maxim Integrated Products – ±15kV ESD-Protected Touch-Screen Controllers Include DAC and Keypad Controller
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±15kV ESD-Protected Touch-Screen
Controllers Include DAC and Keypad Controller
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.)
1.0
0.8
0.6
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
-1.0
0
ADC INTEGRAL NONLINEARITY
vs. OUTPUT CODE
500 1000 1500 2000 2500 3000 3500 4000
OUTPUT CODE
ADC DIFFERENTIAL NONLINEARITY
vs. OUTPUT CODE
1.0
0.8
0.6
0.4
0.2
0
-0.2
-0.4
-0.6
-0.8
-1.0
0
500 1000 1500 2000 2500 3000 3500 4000
OUTPUT CODE
ADC OFFSET ERROR
vs. ANALOG SUPPLY VOLTAGE
2.0
1.5
1.0
0.5
0
-0.5
-1.0
-1.5
-2.0
2.7 3.2 3.7 4.2 4.7 5.2
AVDD (V)
ADC GAIN ERROR
vs. ANALOG SUPPLY VOLTAGE
2.0
1.5
1.0
0.5
0
-0.5
-1.0
-1.5
-2.0
2.7 3.2 3.7 4.2 4.7 5.2
AVDD (V)
ADC OFFSET ERROR vs. TEMPERATURE
2.0
1.5
1.0
0.5
0
-0.5
-1.0
-1.5
-2.0
-40 -20
0 20 40 60 80
TEMPERATURE (°C)
ADC GAIN ERROR
vs. TEMPERATURE
2.0
1.5
1.0
0.5
0
-0.5
-1.0
-1.5
-2.0
-40 -20
0 20 40 60 80
TEMPERATURE (°C)
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