MAX1233_05 Datasheet, PDF (7/45 Pages) Maxim Integrated Products – ±15kV ESD-Protected Touch-Screen Controllers Include DAC and Keypad Controller

±15kV ESD-Protected Touch-Screen
Controllers Include DAC and Keypad Controller
Typical Operating Characteristics
(AV_DD = DV_DD = 3V (MAX1233) or 5V (MAX1234), external V_REF = +2.5V (MAX1233), external V_REF = +4.096V (MAX1234), f_SCLK =
10MHz (50% duty cycle), f_SAMPLE = 20ksps, C_LOAD = 50pF, 0.1µF capacitor at REF, T_A = +25°C, unless otherwise noted.)
SHUTDOWN CURRENT
vs. ANALOG SUPPLY VOLTAGE
300
250
200
150
100
50
0
2.7 3.2 3.7 4.2 4.7 5.2
AV_DD (V)
SHUTDOWN CURRENT
vs. TEMPERATURE
300
250
200
150
100
50
0
-40 -20 0 20 40 60 80
TEMPERATURE (°C)
INTERNAL OSCILLATOR FREQUENCY
vs. ANALOG SUPPLY VOLTAGE
10.0
9.8
9.6
9.4
9.2
9.0
8.8
8.6
8.4
MAX1233/MAX1234
8.2
8.0
2.7 3.2 3.7 4.2 4.7 5.2
AV_DD (V)
INTERNAL OSCILLATOR FREQUENCY
vs. TEMPERATURE
9.8
TEMP1 DIODE VOLTAGE
vs. ANALOG SUPPLY VOLTAGE
0.70
0.68
9.6
0.66
9.4 ^{MAX1234, AVDD = +5.0V}
0.64
0.62
9.2
0.60
0.58
9.0
0.56
8.8 ^{MAX1233, AVDD = +3.0V}
0.54
0.52
8.6
-40 -20
0 20 40 60 80
TEMPERATURE (°C)
0.50
2.7 3.2 3.7 4.2 4.7 5.2
AV_DD (V)
TEMP2 DIODE VOLTAGE
vs. ANALOG SUPPLY VOLTAGE
0.80
0.90
TEMP1 DIODE VOLTAGE
vs. TEMPERATURE
0.80
0.75
0.70
0.65
0.60
0.55
0.50
0.45
0.40
-40 -25 -10 5 20 35 50 65 80
TEMPERATURE (°C)
TEMP2 DIODE VOLTAGE
vs. TEMPERATURE
0.85
0.75
0.80
0.70
0.75
0.70
0.65
0.65
0.60
2.7 3.2 3.7 4.2 4.7 5.2
AV_DD (V)
0.60
-40 -25 -10 5 20 35 50 65 80
TEMPERATURE (°C)
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