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AK4182 - Touch Screen Controller

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General Description

: The AK4182 is a 4-wire resistive touch screen controller that incorporates a 12-bit 125 kHz sampling SAR type A/D converter.

The AK4182 operates down to 2.2V supply voltage and supports digital I/O interface voltage from 1.5V to VCC in order to connect low voltage uP.

The AK4182 can detect the pressed screen location by performing two A/D conversions.

Overview

www.DataSheet4U.com ASAHI KASEI [AK4182] AK4182.

Key Features

  • 12 bit SAR type A/D Converter with S/H circuit.
  • Low Voltage Operation (VCC = 2.2V ∼ 3.6V).
  • Low Voltage Digital I/F (1.5V ∼ VCC).
  • 4-wire I/F.
  • Sampling Frequency: 125 kHz (max).
  • On-Chip Voltage Reference (2.5V).
  • Pen Pressure Measurement.
  • On-Chip Thermo Sensor.
  • Direct Battery Measurement.
  • Low Power Consumption (260µA).
  • Package 16pin QFN Touch Screen Controller General.

More Datasheets from AKM (Asahi Kasei Microdevices)

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