CAP1203 - Microchip

CAP1203 3-Channel Capacitive Touch Sensor

The CAP1203 is a multiple channel capacitive touch sensor controller. It contains individual capacitive touch sensor inputs with programmable sensitivity for use in touch sensor applications. Each sensor input is calibrated to compensate for system parasitic capacitance and automatically recalibrated to compensate for gradual environmental changes. The CAP12.

Features

• Three (3) Capacitive Touch Sensor Inputs - Programmable sensitivity - Automatic recalibration - Calibrates for parasitic capacitance - Individual thresholds for each button
• Multiple Button Pattern Detection
• Power Button Support
• Press and Hold Feature for Volume-like Applica- tions
• 3.3V or 5V Supply
• Analog Filtering for System Noise Sources
• RF Detection and Avoidance Filters
• Digital EMI Blocker
• 8kV ESD Rating on All Pins (HBM)
• Low Power Operation - 5µA quiescent current in Deep Sleep - 50µA quiescent current in Standby (1 sensor input monitored) - Samples one or more channel.