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AT42QT1070-MMHR

MCHPAT42QT1070-MMHR

Microchip Technology
Capacitive Touch Sensors QTouch 7 Channel Touch Sensor IC
7,078 in stock
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Overview

The AT42QT1070 is a dedicated capacitive touch controller designed to support up to seven individual touch keys. It utilizes Microchip's proprietary QTouch technology to provide high-sensitivity proximity and touch detection through an I2C interface, simplifying the implementation of user interfaces in embedded systems.

Why Choose This Part

The device features an Integrated Adjacent Key Suppression (AKS) technology that prevents false triggers by determining which key has the strongest signal. It also includes an auto-calibration routine that adapts to environmental changes and power supply fluctuations without requiring external manual tuning.

Applications

Front Panel Controls
Replacing mechanical buttons with sleek, durable touch keys on consumer appliances and industrial panels.
Proximity Sensing
Detecting the presence of a hand or finger before physical contact is made to wake up a system from sleep mode.
Sealed Interfaces
Creating waterproof or dustproof control surfaces by placing sensors behind glass or plastic overlays.

Getting Started

Engineers can evaluate this IC using the AT42QT1070-XPRO extension board which connects to the Atmel Studio ecosystem. When designing the PCB, ensure short trace lengths between the IC and the sense electrodes and maintain a consistent ground plane for optimal noise immunity.

AT42QT1070 Family

Also available as: AT42QT1070

Also Consider

CAP1188 MCHPMicrochip Technology - Offers eight channels instead of seven and includes integrated LED drivers for visual feedback.
AT42QT1010 MCHPMicrochip Technology - A single-channel alternative for designs that only require a single dedicated touch or proximity button.

Categories

Sensors Analog ICs
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