AR7643 Overview
The AR7643 Touch Panel Controller IC is a 12-bit analog-to-digital (ADC) converter with SPI serial interface and low on-resistance drivers for 4-wire resistive touch panels. The AR7643 is a highly integrated controller for portable applications with 4-wire resistive touch panel such as, PDA, portable instruments, cellular phone, etc. The AR7643 consumes only 800µW at a 125kHz sample rate and a 2.7V supply and...