MK712 Description
The MK712 Touch Screen Controller IC provides all the screen drive, A to D converter and control circuits to easily interface to 4-wire analog resistive touch screens. The IC continually monitors the screen waiting for a touch. In this mode, the supply current is typically 0.5µA.
MK712 Key Features
- Fully integrated, lowest power solution
- Low standby current of 0.5µA (typical) at 5.0V
- Active current while converting less than 10 mA
- Resolves 350 dots/inch on 10.5” display
- Maximum speed of 197 points/second
- Ratiometric conversion may eliminate screen calibration
- Automatically wakes up and goes back to standby
- 3.3V or 5V supply
- 12 bit A/D converter
- Simplifies the writing of software for touch screens