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AT42QT1070-SSU - 

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

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Manufacturer:
MICROCHIP MICROCHIP
Manufacturer Part No:
AT42QT1070-SSU
Newark Part No.:
68T4661
Technical Datasheet:
(EN)
See all Technical Docs

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®)

Applications

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

Product Information

:
I2C
:
1.8V
:
5.5V
:
SOIC
:
14Pins
:
-40°C
:
85°C
:
Cut Tape
:
-
:
MSL 3 - 168 hours
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