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    Manufacturer: Atmel / Quantum Research

    This product has been superceded by QT113B-ISG [MOQ 4000]


    QT113B-ISG available in 4K multiples on 14 week lead time.


    Single Channel Charge-Transfer Touch & Proximity Sensor ICs 


    QT110 family QTouch™ ICs will create sense fields through dielectric surfaces such as plastic or glass up to 100mm (4") thick, and can even turn small objects into sensors. These sense fields can work easily through gloved hands.

    These ICs are ideal for simple, inexpensive touch controls in almost any product. The QT113 and QT118H can also be used for material or moisture sensing. The devices require only an external sampling capacitor and an electrode to operate.

    QT110 family devices offer autocalibration, drift compensation, recalibration timeouts, plus a variety of response times, output polarities and toggle modes. These parts need no special calibration or adjustment. They automatically adapt to the build-up of dirt, moisture, and temperature variations.

    Sensitivity can be adjusted by changing the value of Cs, and/or via a gain pin.

    Most QT110 family devices are designed for human touch. The QT110 and QT118H include piezo beeper drive logic (see selection table below). Current consumption is as low as 10µA.

    The E11x evaluation board comes complete with all three devices.

    »QT110 »QT113 »QT118H


    QT110 QT113 QT118H
    Timeouts Available 10/60s 10/60s/
    Response Time 130ms 30ms 130ms
    Gain Settings 3 Variable
    via Cs
    via Cs
    Drift Compensation Yes Yes Yes
    Piezo Beeper Drive Yes - Yes
    HeartBeatâ„¢ Yes Yes Yes
    Toggle Output Mode Yes Yes Yes
    Pulse Output Mode Yes - Yes
    Active Output Polarity L, H2 L, H2 H
    Supply Current @ 3V 20µA 600µA 20µA
    Evaluation Board E11x E11x E11x

    All specifications are typical and depend on circuit design and usage.

    Simple circuit design = 1 external part

    +2.5 ~ 5V operation, Idd as low as 20µA

    Full autocal, drift compensation

    Patented Charge-Transfer sensing method
    Auto recalibration after timeout

    Variable sensitivity (QT113, QT118H)

    Heartbeat™ output for secure sensing

    On/Off Buttons

    Appliance Controls

    Security Detection
    Lighting Controls

    Intrinsically Safe Switches

    Toys/Interactive Games
    Sealed Switches

    Membrane Replacement

    QT11x Circuit

    Please contact
    Saelig Company in North America, Farnell in Europe or yourLocal Distributor in other countries.
    Part Pb-Free Temp Pkg Output Pwr T&R MOQ
    QT110-DG NOW 0~70°C DIP8 L +3 to +5V
    QT110-ISG NOW -40~85°C SO8 L +3 to +5V x 3300
    QT113-DG NOW 0~70°C DIP8 L +3 to +5V
    QT113-ISG NOW -40~85°C SO8 L +3 to +5V x 3300
    QT117L-ISG NOW -40~85°C SO8 n/a +3 to +5V x 3300
    QT118H-DG NOW 0~70°C DIP8 H +3 to +5V
    QT118H-ISG NOW -40~85°C SO8 H +3 to +5V x 3300



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