Features

• Low-Power, High-Sensitivity, Environmentally Robust Capacitive Touch Buttons, Sliders, and Wheels
• Supports Wake-up on Touch from Standby Sleep Mode
• Supports Mutual Capacitance and Self Capacitance Sensing
  • Mix-and-match mutual and self-capacitance sensors
• One Pin per Electrode – No External Components
• Load Compensating Charge Sensing
  • Parasitic capacitance compensation and adjustable gain for superior sensitivity
• Zero Drift Over the Temperature and V_DD Range
  • Auto-calibration and recalibration of sensors
• Single-Shot and Free-Running Charge Measurement
• Hardware Noise Filtering and Noise Signal Desynchronization for High Conducted Immunity
• Driven Shield for Better Noise Immunity and Moisture Tolerance
  • Any PTC X/Y line can be used for the driven shield
  • All enabled sensors will be driven at the same potential as the sensor scanned
• Selectable Channel Change Delay Allows Choosing the Settling Time on a New Channel, as Required
• Acquisition-Start Triggered by Command or Through Auto-Triggering Feature
• Low CPU Utilization Through Interrupt on Acquisition-Complete
• Using ADC Peripheral for Signal Conversion and Acquisition