AT42QT1012-MAH Datasheet PDF - ATMEL

●Features

●• Number of Keys:

●– One, toggle mode (touch-on/touch-off), plus programmable auto-off delay and external cancel

●– Configurable as either a single key or a proximity sensor

●• Technology:

●– Patented spread-spectrum charge-transfer (direct mode)

●• Key outline sizes:

●– 6 mm x 6 mm or larger (panel thickness dependent); widely different sizes and shapes possible

●• Electrode design:

●– Solid or ring electrode shapes

●• PCB Layers required:

●–One

●• Electrode materials:

●– Etched copper, silver, carbon, Indium Tin Oxide (ITO)

●• Electrode substrates:

●– PCB, FPCB, plastic films, glass

●• Panel materials:

●– Plastic, glass, composites, painted surfaces (low particle density metallic paints possible)

●• Panel thickness:

●– Up to 12 mm glass, 6 mm plastic (electrode size and Cs dependent)

●• Key sensitivity:

●– Settable via external capacitor (Cs)

●• Interface:

●– Digital output, active high or active low (hardware configurable)

●• Moisture tolerance:

●–Good

●• Power:

●– 1.8V ~ 5.5V; 32 µA at 1.8V

●• Package:

●– 6-pin SOT23-6 (3 x 3 mm) RoHS compliant

●– 8-pin UDFN/USON (2 x 2 mm) RoHS compliant

●• Signal processing:

●– Self-calibration, auto drift compensation, noise filtering