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QT113-ISG  1-key SO8 IC

    QT113-ISG 1-key SO8 IC

    Manufacturer: Atmel / Quantum Research

    This part is discontinued.




    The QT110 family parts are no longer recommended for new one channel touch designs.  We are committed to supporting customers currently using this product, but recommend either the QT220 or the newly introduced QT100A for any new designs. The QT100A comes in a 10-pin MSOP package or a 6-pin WSON package. The latter is footprint compatible with the QT100 SOT23-6 package.



    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 auto calibration, 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.


    QT11x ICs are Ideal for Simple Switch Applications


    Selection Table

      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
    HeartBeat™ 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

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