Introduction
The AT42QT1010 (QT1010) is a digital burst mode charge-transfer (QT™) sensor that is capable of detecting near proximity or touch, making it ideal for implementing touch controls.
With the proper electrode and circuit design, the self-contained digital IC will project a touch or proximity field to several centimeters through any dielectric like glass, plastic, stone, ceramic, and even most kinds of wood. It can also turn small metal-bearing objects into intrinsic sensors, making them responsive to proximity or touch. This capability, coupled with its ability to self-calibrate, can lead to entirely new product concepts.

Features
● Number of Keys:
   ● One – configurable as either a single key or a proximity sensor
● Technology:
   ● Patented spread-spectrum charge-transfer (direct mode)
● Key outline sizes:
   ● 6 mm × 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 capacitor (Cs)
● Interface:
   ● Digital output, active high
● Moisture tolerance:
   ● Increased moisture tolerance based on hardware design and firmware tuning
● Operating Voltage:
   ● 1.8 V – 5.5 V; 17 µA at 1.8 V typical
● Package:
   ● 6-pin SOT23-6 RoHS compliant
   ● 8-pin UDFN/USON RoHS compliant
● Signal processing:
   ● Self-calibration, auto drift compensation, noise filtering
● Applications:
   ● Control panels, consumer appliances, proximity sensor applications, toys,
      lighting controls, mechanical switch or button,
● Patents:
   ● QTouch® (patented charge-transfer method)
   ● HeartBeat (monitors health of device)