Digital IC adds touch control to products.
Press Release Summary:
Capable of 6 channels of proximity or touch sensing, QT160 IC can be used to create capacitive, glass touch keys through insulating materials up to 4 in. thick. Self-contained QTouch chip is available with toggle mode, which permits on/off touch control. For electrically adjacent keys, AKS feature suppresses touch response from weaker responding keys so only dominant key is detected. With Sync feature, designers can create more keys using multiple QTouch devices.
Original Press Release:
Quickly Add Some Economical Touch Controls to Your Product!
Pittsford, NY: QT160 IC is a self-contained, digital QTouch chip capable of six channels of proximity or touch sensing. It can be used to create capacitive 'glass touch' keys through insulating materials up to 100 mm thick (4"). The parts require only one common, inexpensive capacitor per channel in order to function. The option- selectable toggle mode permits on/off touch control, for use in application such as a light switch, for example.
AKS Feature
The chip offers patented Adjacent Key Suppression (AKS) to suppress touch from weaker responding keys, allowing only the dominant key to detect. This solves the problem of large fingers overlapping tightly spaced keys or water films over several keys. AKS affects only electrically adjacent keys.
Sync Feature
This feature allows designers to create even more keys using multiple QTouch devices, synchronizing them without cross- interference. "Sync" can also be used to synchronize one or more parts to the line/mains frequency to suppress interference.
Also available is E160, a $75 6-key evaluation board designed for testing QT160. It includes six keys with backlighting to indicate touch on each key. The keys are made using copper rings in a PCB under a thick, clear plastic panel. Switches are provided to allow setting of the QT160's option pins.
QT160 is available from stock from Saelig Co. (USA distributor for Quantum Research UK) at $1.82 (10K).
Contact Information
email: info@saelig.com
phone / fax: 585-385-1750 / 585-385-1768
web: www.saelig.com
