Product Descriptions

Ak4181a is a 4-wire touch screen controller with a sequential 12 bit a / D converter.  

Ak4181a operates from 2.7V and can operate up to 125 kHz as a sampling frequency.  

It is possible to detect brush pressure in addition to X axis / Y axis position detection. Battery voltage can be measured because it has a reference voltage. In addition, since the temperature sensor is built-in, temperature measurement is also possible. Holds two inputs for external analog voltage measurements.

Product Features

„ Sampling frequency: 125 kHz (max)

„ Writing pressure measurement

„ Built in temperature sensor

„ Analog input

„ Battery voltage measurement

„ Four wire interface

„ Built in reference voltage

„ Built in 12 bit ADC with successive comparison

„ Low current consumption (250. Mu. A)

„ Low voltage operation (2.7V to 3.6V)

„ Package 16pin TSSOP

Product Photos

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