Electric Field Imaging Device
●The MC33941 is intended for cost-sensitive applications where non-contact sensing of objects is desired. When connected to external electrodes, an electric field is created. The MC33941 detects objects in this electric field. The IC generates a low-frequency sine wave, which is adjustable by using an external resistor and is optimized for 120 kHz.
●Features
●ï Supports up to 7 Electrodes
●ï Shield Driver for Driving Remote Electrodes Through Coaxial
●ï High-Purity Sine Wave Generator Tunable with External Resistor
●ï Response Time Tunable with External Capacitor
●ï +5V Regulator to Power External Circuit
●ï Can support up to 28 touch pad sensors (2 way multiplexing)
●ï Extended Temperature Range 0 to 110oC
●ï Pb-Free and RoHS compliant
●Typical Applications
●ï Appliance Control Panels and Touch Sensors
●ï Linear and Rotational Sliders
●ï Spill Over Flow Sensing Measurement
●ï Refrigeration Frost Sensing
●ï Industrial Control and Safety Systems Security
●ï Proximity Detection for Wake-Up Features
●ï Touch Screens
●ï Garage Door Safety Sensing
●ï PC Peripherals
●ï Patient Monitoring
●ï Point of Sale Terminals
●ï Size Detection
●ï Liquid Level Sensing
