ATMEL  AT42QT1070-SSU  Capacitive Touch Sensor, I2C, 1.8 V, 5.5 V, SOIC, 14, -40 °C


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  • Manufacturer:
  • Newark Part No.: 68T4661
  • Manufacturer Part No AT42QT1070-SSU

Product Overview

The AT42QT1070-SSU is a digital burst mode charge-transfer capacitive Sensor Driver. The device can sense from one to seven keys, dependent on mode. It has the optimized architecture where no external components are required and only 1-pin per channel. It includes all signal processing functions necessary to provide stable sensing under a wide variety of changing conditions and the outputs are fully de-bounced. It modulates its bursts in a spread-spectrum fashion in order to heavily suppress the effects of external noise and to suppress RF emissions. It uses a dual-pulse method of acquisition. This provides greater noise immunity and eliminates the need for external sampling capacitors, allowing touch sensing using a single pin.
  • Comms and Standalone Mode Configurations
  • 1 to 7 Keys (or 1 to 6 Keys Plus a Guard Channel) Comms Mode
  • 1 to 4 Keys Plus a Fixed Guard Channel on Key 0 Standalone Mode
  • 5-output Standalone Mode
  • Patented Spread-spectrum Charge-transfer Technology
  • 6 x 6mm or Larger (Panel Thickness Dependent), Widely Different Sizes and Shapes Possible
  • 1 PCB Layer Required
  • Etched Copper, Silver, Carbon and Indium Tin Oxide (ITO) Electrode Materials
  • Plastic, Glass, Composites and Painted surfaces possible Panel Materials
  • Up to 10mm Glass, up to 5mm Plastic (Electrode Size Dependent) Panel Thickness
  • Individually settable via simple commands over I²C-compatible interface Comms mode
  • I²C-compatible Slave Mode (400kHz), Discrete Detection Outputs Interface
  • Self-calibration, Auto Drift Compensation, Noise Filtering, Adjacent Key Suppression® (AKS®)


Building Automation; Security; Consumer Electronics; Imaging, Video & Vision; Industrial; Communications & Networking; Lighting; Metering; Portable Devices; Computers & Computer Peripherals
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Product Specifications, Documents & More

  • IC Interface Type: I2C
  • MSL: -
  • No. of Pins: 14
  • Operating Temperature Max: 85°C
  • Operating Temperature Min: -40°C
  • Packaging: Each
  • SVHC: No SVHC (15-Jun-2015)
  • Sensor Case Style: SOIC
  • Supply Voltage Max: 5.5V
  • Supply Voltage Min: 1.8V

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Availability:  3,007

  • 3,007 in stock for same day shipping
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    More stock available week commencing 12/14/15

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1000+ $0.885

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