AKM Semiconductor, Inc. Data Acquisition - Touch Screen Controllers AK4186EN

The AK4186EN is a low power touch screen controller designed for 4-wire and 5-wire resistive touch screens, featuring a 12-bit SAR A/D converter. It operates with a supply voltage range of 1.6V to 3.6V, making it suitable for low voltage microprocessors. The device supports an I²C serial interface and has a sampling rate of 22.2 kHz. It includes functions for continuous reading and pen pressure measurement, which can reduce the processing load on the microprocessor. The AK4186EN is packaged in a 16-pin QFN format (3mm x 3mm, 0.5mm pitch) and is ideal for applications in portable devices such as smartphones and digital cameras. Its low power consumption of 60 µA at 1.8V and auto power down feature enhance its efficiency for battery-operated devices.