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

Technical Data Sheet (399.30KB) EN See all Technical Docs

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ATMEL AT42QT1070-SSU
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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®)

 

Product Information

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

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Applications

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

Legislation and Environmental

Moisture Sensitivity Level:
-
Product Traceability
RoHS Compliant:
Yes

Associated Products

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