Features
- Low-Power, High-Sensitivity,
Environmentally Robust Capacitive Touch Buttons, Sliders, and Wheels
- Supports Wake-up on Touch from power-save 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
VDD 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