MAX11803EWC+T datasheet(8/59 Pages) MAXIM

Part #	MAX11803EWC+T

Description	Low-Power, Ultra-Small Resistive Touch-Screen Controllers with I2C/SPI Interface

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Manufacturer	MAXIM [Maxim Integrated Products]

Direct Link	https://www.maximintegrated.com/en.html

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Low-Power, Ultra-Small Resistive Touch-Screen

Controllers with I2C/SPI Interface

8

_______________________________________________________________________________________

ELECTRICAL CHARACTERISTICS

(VDD = 1.7V to 3.6V, TA = -40°C to +85°C (MAX11800E–MAX11803E), 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.)

Stresses beyond those listed under “Absolute Maximum Ratings” 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.

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

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

ADC

ADC Resolution

No missing codes

10

11

Bits

Differential Nonlinearity

DNL

12-bit resolution

±1.5

LSB

Integral Nonlinearity

INL

12-bit resolution

±1.5

LSB

Offset Error

±2

LSB

Gain Error

±4

LSB

Throughput

105

ksps

TOUCH SENSORS (X+, X-, Y+, Y-, AUX)

VDD = 1.7V

7

Switch On-Resistance

VDD = 3.3V

5

Switch Driver Current

100ms pulse

50

mA

Input Voltage Range

0

VDD

V

POWER SUPPLY (VDD)

Supply Voltage

VDD

1.7

3.6

V

1.7V

0.2

Power-down mode. All digital

inputs static.

3.6V

2

TDM. All digital inputs static.

Does not include panel

currents when touched.

3.6V

7

1.7V

9

Timed LPM. All digital inputs

static. Does not include panel

currents when touched.

3.3V

16

1.7V

216

AUX conversions at 34.4ksps

equivalent rate, SPI

3.3V

273

550

1.7V

202

Supply Current

AUX conversions at 34.4ksps

equivalent rate, I2C

3.3V

269

550

μA

1.7V

367

AUX conversions at 34.4ksps

equivalent rate, SPI

3.3V

901

1.7V

343

Power Consumption

AUX conversions at 34.4ksps

equivalent rate, I2C

3.3V

888

μW

ABSOLUTE MAXIMUM RATINGS

Note 1: All WLP devices are 100% production tested at TA = +25°C. Specifications over temperature limits are guaranteed by

design and characterization.

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