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AK4186 - Low Power Touch Screen Controller

Description

The AK4186 is a 4-wire/ 5-wire resistive touch screen controller that incorporates 12bit SAR A/D converter.

The AK4186 can detect the pressed screen location with two A/D conversions and it can also measure touch pressure.

Features

  • ! 4-wire or 5-wire Touch Screen Interface ! I2C Serial Interface ! 12bit SAR A/D Converter with S/H circuit.

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Datasheet preview – AK4186

Datasheet Details

Part number AK4186
Manufacturer Asahi Kasei Microsystems
File Size 539.89 KB
Description Low Power Touch Screen Controller
Datasheet download datasheet AK4186 Datasheet
Additional preview pages of the AK4186 datasheet.

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Full PDF Text Transcription

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[AK4186] AK4186 Low Power Touch Screen Controller with I2C Interface GENERAL DESCRIPTION The AK4186 is a 4-wire/ 5-wire resistive touch screen controller that incorporates 12bit SAR A/D converter. The AK4186 can detect the pressed screen location with two A/D conversions and it can also measure touch pressure. The AK4186 has both an automatic continuous measurement and a measurement data calculation function. The functions that normally require external processing, such as calculating the average screen input value, are processed by the AK4186. In addition, a new sequential mode achieves short coordinate measurement time while greatly reducing the microprocessor overhead. The AK4186 operates off of supply voltage down to 1.6V in order to connect a low voltage microprocessor.
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