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.

特性 Features

? Supports up to 7 Electrodes

? Shield Driver for Driving Remote Electrodes Through Coaxial

? High-Purity Sine Wave Generator Tunable with External Resistor

? Response Time Tunable with External Capacitor

? +5V Regulator to Power External Circuit

? Can support up to 28 touch pad sensors (2 way multiplexing)

? Extended Temperature Range 0 to 110oC

? Pb-Free and RoHS compliant

Typical Applications

? Appliance Control Panels and Touch Sensors

? Linear and Rotational Sliders

? Spill Over Flow Sensing Measurement

? Refrigeration Frost Sensing

? Industrial Control and Safety Systems Security

? Proximity Detection for Wake-Up Features

? Touch Screens

? Garage Door Safety Sensing

? PC Peripherals

? Patient Monitoring

? Point of Sale Terminals

? Size Detection

? Liquid Level Sensing