OVERVIEW
The QT1080 is an easy to use, 8 touch-key sensor IC based on Quantum’s patented charge-transfer principles for robust operation and ease of design. This device has many advanced features which provide for reliable, trouble-free operation over the life of the product.
QT1080 charge-transfer (“QT’”) QTouch IC is a self-contained digital controller capable of detecting near-proximity or touch on up to 8 electrodes. It allows electrodes to project independent sense fields through any dielectric such as glass or plastic. This capability coupled with its continuous self-calibration feature can lead to entirely new product concepts, adding high value to product designs. The devices are designed specifically for human interfaces, like control panels, appliances, gaming devices, lighting controls, or anywhere a mechanical switch or button may be found; they may also be used for some material sensing and control applications.

● 8 completely independent QT touch sensing fields
● Designed for low-power portable applications
● 100% autocal for life - no adjustments required
● Direct outputs - either encoded or ‘per key’
● Fully debounced results
● 2.8V ~ 5.0V single supply operation
● 45µA current typ @ 3V in 360ms LP mode
● AKS™ Adjacent Key Suppression
● Spread spectrum bursts for superior noise rejection
● Sync pin for excellent LF noise rejection
● 10ms ‘fast mode’ for use in slider applications
● Pb-free packages: 32-QFN and 48-SSOP

APPLICATIONS
◆ Pointing devices
◆ Remote controls
◆ PC peripherals
◆ Television controls
◆ MP3 players
◆ Mobile phones