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| MAX11800_1010 Datasheet, PDF (8/59 Pages) Maxim Integrated Products – Low-Power, Ultra-Small Resistive Touch-Screen Controllers with I2C/SPI Interface | |||
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Low-Power, Ultra-Small Resistive Touch-Screen
Controllers with I2C/SPI Interface
ABSOLUTE MAXIMUM RATINGS
VDD to GND ...........................................................-0.3V to +4.0V
X+, X-, Y+, Y-, AUX, TIRQ to GND ........................-0.3V to +4.0V
SCL, CLK, SDA, DIN, A0, CS, A1, DOUT to GND.-0.3V to +4.0V
Maximum Current into Any Pin .........................................±50mA
Continuous Power Dissipation (TA = +70°C)
12-Pin TQFN (derate 24.4mW/°C above +70°C) ....1951.2mW
12-Pin WLP (derate 6.5mW/°C above +70°C) ..........518.8mW
Operating Temperature Ranges
MAX1180_E_ _..................................................-40°C to +85°C
MAX1180_G_ _ ...............................................-40°C to +105°C
Storage Temperature Range .............................-65°C to +150°C
Junction Temperature ......................................................+150°C
Lead Temperature (excluding WLP, soldering, 10s) .......+300°C
Soldering Temperature (reflow) .......................................+260°C
Note 1: All WLP devices are 100% production tested at TA = +25°C. Specifications over temperature limits are guaranteed by
design and characterization.
Stresses beyond those listed under âAbsolute Maximum Ratingsâ may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(VDD = 1.7V to 3.6V, TA = -40°C to +85°C (MAX11800EâMAX11803E), TA = -40°C to +105°C (MAX11800G/MAX11801G), unless oth-
erwise noted. Typical values are at TA = +25°C and VDD = 3.3V, unless otherwise noted.)
ADC
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
ADC Resolution
No missing codes
10
11
Bits
Differential Nonlinearity
Integral Nonlinearity
Offset Error
DNL
INL
12-bit resolution
12-bit resolution
±1.5
LSB
±1.5
LSB
±2
LSB
Gain Error
±4
LSB
Throughput
105
ksps
TOUCH SENSORS (X+, X-, Y+, Y-, AUX)
Switch On-Resistance
Switch Driver Current
VDD = 1.7V
VDD = 3.3V
100ms pulse
7
5
50
mA
Input Voltage Range
POWER SUPPLY (VDD)
Supply Voltage
VDD
Power-down mode. All digital 1.7V
inputs static.
3.6V
0
VDD
V
1.7
3.6
V
0.2
2
Supply Current
Power Consumption
TDM. All digital inputs static.
Does not include panel
currents when touched.
Timed LPM. All digital inputs
static. Does not include panel
currents when touched.
AUX conversions at 34.4ksps
equivalent rate, SPI
AUX conversions at 34.4ksps
equivalent rate, I2C
AUX conversions at 34.4ksps
equivalent rate, SPI
AUX conversions at 34.4ksps
equivalent rate, I2C
3.6V
1.7V
3.3V
1.7V
3.3V
1.7V
3.3V
1.7V
3.3V
1.7V
3.3V
7
9
μA
16
216
273 550
202
269 550
367
901
μW
343
888
8 _______________________________________________________________________________________
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