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AR1000 SERIES RESISTIVE TOUCH SCREEN CONTROLLER
AR1000 Series Resistive Touch Screen Controller
Special Features
• RoHS Compliant • Power-Saving Sleep mode • Industrial Temperature Range • Built-in Drift Compensation Algorithm • 128 Bytes of User EEPROM
Power Requirements
• Operating Voltage: 2.5-5.0V ±5% • Standby Current:
- 5V: 85 µA, typical; 125 µA (maximum) - 2.5V: 40 µA, typical; 60 µA (maximum) • Operating “No touch” Current: - 3.0 mA (typical) • Operating “Touch” Current: - 17 mA, typical, with a touch sensor having
200 layers - Actual current is dependent on the touch
sensor used • AR1011/AR1021 Brown-Out Detection (BOR) set
to 2.2V
Touch Modes
• Off, Stream, Down, Up and more.
Touch Sensor Support
• 4-Wire, 5-Wire and 8-Wire Analog Resistive • Lead-to-Lead Resistance: 50-2,000typical) • Layer-to-Layer Capacitance: 0-0.5 µF • Touch Sensor Time Constant: 500 µs (maximum)
Touch Resolution
• 10-bit Resolution (maximum)
.