Atmel AT42QT1010-MAH

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Overview

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.

● 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)

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