AK4182 Datasheet (Asahi Kasei Microsystems)

AK4182, Touch Screen Controller

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 pres

AK4182 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