General Description
The HALIOS® principle highly improves sensitivity and robustness against disturbances of sensor systems. Therefore it is possible to realize, e.g. touch or approach detection systems based on a capacitive working principle even in metal shielded environment or optical input devices under high ambient light conditions. The E909.01 is an optical switch which is able to suppress the influence of ambient light by using the HALIOS® working principle. The device detects the rapprochement of objects and additionally indicates when the object touches the surface. These functions are available on the device pins PROX and Touch. Further, the corresponding measurement values can be readout via SPI interface. Elmos recommands the integrated optical module TCND3000 for optimized optical sensitivity.

FEATUREs
► Two outputs for Proximity and Touch function
► SPI interface for measurement data
► Selfcalibration capability
► Operational up to 200klux ambient light
► Package SOP16 or TSSOP16
► Supply voltage: 3.3V to 5.0V
► – 40°C to +85°C operating temperature

APPLICATIONs
► Waterproof switches
► Switch for anti-septic environment
► Switch with background lighting function
► Proximity sensing
► Optical key pad array