AT42QT1011-MAHR

Series:	QTouch™
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Buttons
Proximity Detection:	Yes
Number of Inputs:	1
LED Driver Channels:	--
Interface:	--
Resolution:	14 b
Voltage - Supply:	1.8 V ~ 5.5 V
Current - Supply:	378.5µA
Operating Temperature:	-40°C ~ 85°C
Package / Case:	8-UFDFN Exposed Pad
Supplier Device Package:	8-UDFN, USON

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AT42QT1011-MAHR Application Field and Working Principle

The AT42QT1011-MAHR is a capacitive touch detector that is used in a wide range of applications. These include consumer electronics, automotive, industrial, and medical applications. The device is suitable for use in tough environmental conditions and provides good performance in terms of high noise immunity, low power consumption, and wide temperature ranges.

How it works

The AT42QT1011-MAHR works on the principle of capacitance sensing. It has two electrodes, a sensing electrode and an auxiliary electrode. When an object such as a finger or a tool is placed near the sensing electrode, it creates a capacitance between the two electrodes, which is measured by the device. The device includes a network of complex filters and algorithms which are used to detect the presence or absence of a capacitive object. It has an on-chip oscillator and maintains a stable reference frequency. When the device is used in a multiple touch screen application, it is able to detect and locate multiple items on the screen.

Applications

AT42QT1011-MAHR is used in a wide range of applications. It is used in consumer electronic products such as TVs, home audio systems, DVD and Blu-ray players, and gaming consoles. It is also used in industrial automation, medical instruments, automotive, and robotics platforms. It is particularly suitable for use in keypads and other touchscreen applications, due to its stable and accurate sensing. The device is also capable of recognizing gestures, making it suitable for use in software applications and other user interfaces. It is ideal for use in harsh environmental conditions, and is able to operate in temperatures ranging from -40 to +85°C.

Advantages

The AT42QT1011-MAHR has many advantages over mechanical or optical touch sensors. It is able to detect very small objects such as a finger, and is relatively insensitive to environmental conditions such as dirt and dust. It is also very power efficient, consuming only 0.1µA at 1.8V. This makes it suitable for use in battery-powered applications. In addition, it is capable of recognizing multiple touches, enabling multitouch inputs on a device. Furthermore, it has high noise immunity and is resistant to interference from other electronic devices in the vicinity.

Conclusion

The AT42QT1011-MAHR is a powerful and versatile capacitive touch sensor which is suitable for use in a variety of applications. It offers good performance and is suitable for use in harsh environmental conditions. It is able to detect small objects and is able to recognize multiple touches. In addition, it is power efficient and has high noise immunity, making it ideal for use in a wide range of applications.

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