Product Summary

The AT42QT1011 is the one-channel touch sensor IC. The sensitivity on the AT42QT1011 is a function of things like the value of Cs, electrode size and capacitance, electrode shape and orientation, the composition and aspect of the object to be sensed, the thickness and composition of any overlaying panel material, and the degree of ground coupling of both sensor and object.

Parametrics

AT42QT1011 absolute maximum ratings: (1)Operating temperature: -40℃ to +85℃; (2)Storage temperature: -55℃ to +125℃; (3)VDD: 0 to +6.5V; (4)Max continuous pin current, any control or drive pin: ±20 mA; (5)Short circuit duration to Vss, any pin: Infinite; (6)Short circuit duration to Vdd, any pin: Infinite; (7)Voltage forced onto any pin: -0.6V to (VDD + 0.6) Volts.

Features

AT42QT1011 features: (1)Number of Keys:One, Configurable as either a single key or a proximity sensor; (2)Technology: Patented spread-spectrum charge-transfer (direct mode); (3)Key outline sizes: 6 mm x 6 mm or larger (panel thickness dependent); widely different sizes and shapes possible; (4)Electrode design: Solid or ring electrode shapes; (5)PCB Layers required: One; (6)Electrode materials: Etched copper, silver, carbon, Indium Tin Oxide (ITO); (7)Electrode substrates: PCB, FPCB, plastic films, glass; (8)Panel materials: Plastic, glass, composites, painted surfaces (low particle density metallic paints possible); (9)Panel thickness: Up to 12 mm glass, 6 mm plastic (electrode size and Cs dependent); (10)Power: 1.8V to 5.5V; 17μA at 1.8V typical; (11)Package: 6-pin SOT23-6 RoHS compliant.

Diagrams

AT42QT1011 basic circuit configuration

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
AT42QT1011-MAH
AT42QT1011-MAH

Atmel

Capacitive Touch Sensors One-Channel Touch Sensor IC

Data Sheet

0-2500: $0.30
AT42QT1011-TSHR
AT42QT1011-TSHR

Atmel

Capacitive Touch Sensors One-Channel Touch Sensor IC

Data Sheet

0-3700: $0.30