AT42QT1070-MMHR Integrated Circuits (ICs)

Series:	QTouch™
Packaging:	Tape & Reel (TR)
Part Status:	Active
Type:	Buttons
Proximity Detection:	No
Number of Inputs:	Up to 7
LED Driver Channels:	Up to 5
Interface:	I²C
Resolution:	--
Voltage - Supply:	1.8 V ~ 5.5 V
Current - Supply:	--
Operating Temperature:	-40°C ~ 85°C
Package / Case:	20-VFQFN Exposed Pad
Supplier Device Package:	20-VQFN (3x3)

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Introduction

Capacitive touch sensing is an emerging technology, which is becoming increasingly popular in the modern electronics industry. The AT42QT1070-MMHR is a low power touch solution, which is used in applications, such as capacitive buttons, sliders and proximity detection. This integrated circuit is an improved version of the AT42QT1060-MMHR, which is widely used in industrial, medical, and consumer products.The AT42QT1070-MMHR is an integrated capacitive touch sensing system that provides high immunity to electromagnetic interference (EMI). It is designed to be highly accurate and responsive, even in harsh environmental conditions. Moreover, the AT42QT1070-MMHR is easy to integrate with existing systems, making it widely applicable in a variety of fields.

Application Field

The AT42QT1070-MMHR is highly suitable for a wide range of applications, including capacitive buttons and sliders, discrete key switches, and proximity detection. It is widely used in industrial and medical applications, where accuracy and responsiveness are of paramount importance. Its low power consumption, high EMI immunity, and easy integration make it highly applicable to both commercial and consumer products.For example, the AT42QT1070-MMHR can be used in medical instruments, such as patient monitoring devices, vital sign indicators, and ECG monitors. It can also be used in industrial applications, such as process control systems and machine automation equipment. Additionally, the AT42QT1070-MMHR is widely used in consumer electronics, such as smartphones, tablets, and remote controls.

Working Principle

The AT42QT1070-MMHR utilizes a patented Charge-Transfer (CT) capacitive sensing technique. In operation, the device uses electrodes to monitor a user\'s touch. The electrodes detect changes in the electrical field around them to sense a touch. A low current is applied to the electrodes to measure changes in capacitance, which is translated into a touch.The AT42QT1070-MMHR\'s CT technology is based on the principles of an impregnated guard system. This system avoids false readings, which are commonly caused by EMI. In addition, the AT42QT1070-MMHR utilizes an ultra-low power measurement technique that ensures a minimum response time and maximum accuracy.

Conclusion

The AT42QT1070-MMHR is a low power capacitive touch solution, which is used in industrial, medical, and consumer products. It utilizes a patented Charge-Transfer (CT) capacitive sensing technique and an impregnated guard system to avoid false readings. Moreover, the AT42QT1070-MMHR is easy to integrate with existing systems, making it highly applicable and suitable for a wide range of applications.

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