The QT113 charge-transfer (“QT’”) touch sensor is a self-contained digital IC capable of detecting near-proximity or touch. It will project a proximity sense field through air, via almost any dielectric, like glass, plastic, stone, ceramic, and 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 continuously can lead to entirely new product concepts.
Projects a proximity field through air
Less expensive than many mechanical switches
Sensitivity easily adjusted via capacitor value
Turns small objects into intrinsic touch sensors
100% autocal for life - no adjustments required
2.5 to 5V, 600µA single supply operation
Toggle mode for on/off control (strap option)
10s, 60s, infinite auto-recal timeout (strap options)
Gain settings in 2 discrete levels
HeartBeat™ health indicator on output
Active-low (QT113) or active-high outputs (QT113H)
Only one external part required - a 1¢ capacitor
Toys & games
Quantum Research Group was acquired by Atmel.
Quantum Research Group is the leading independent developer of capacitive sensing IP and solutions for user interfaces. Offering a wide variety of touch and proximity sensing solutions, Quantum Research Group is the leading independent supplier of capacitive sensing solutions. Quantum Research Group innovative touchpad navigation technologies support a wide range of markets and applications.