AT42QT1110-AZ

Product Overview

Category

AT42QT1110-AZ belongs to the category of touch sensor integrated circuits.

Use

This product is primarily used for touch sensing applications in various electronic devices.

Characteristics

• Touch sensor IC with advanced features
• High sensitivity and accuracy
• Low power consumption
• Compact package size
• Easy integration into different designs

Package

AT42QT1110-AZ is available in a small surface-mount package, making it suitable for space-constrained applications.

Essence

The essence of AT42QT1110-AZ lies in its ability to accurately detect touch inputs and provide reliable touch sensing functionality.

Packaging/Quantity

This product is typically packaged in reels or tubes, with varying quantities depending on the manufacturer's specifications.

Specifications

• Operating voltage: 2.5V - 5.5V
• Number of touch channels: 1
• Sensing method: Mutual capacitance
• Output interface: I2C
• Operating temperature range: -40°C to +85°C
• Dimensions: 3mm x 3mm (approx.)

Detailed Pin Configuration

The AT42QT1110-AZ has the following pin configuration:

1. VDD: Power supply input
2. GND: Ground connection
3. SDA: I2C data line
4. SCL: I2C clock line
5. IRQ: Interrupt output
6. TCH: Touch input channel

Functional Features

• Single-channel touch sensing capability
• Configurable sensitivity settings
• Built-in noise filtering algorithms
• Interrupt output for touch detection events
• I2C interface for easy communication with microcontrollers

Advantages and Disadvantages

Advantages

• High sensitivity enables accurate touch detection
• Low power consumption prolongs battery life in portable devices
• Compact package size allows for flexible integration
• Configurable sensitivity settings cater to different application requirements

Disadvantages

• Limited to single-channel touch sensing
• Requires external microcontroller for complete functionality

Working Principles

AT42QT1110-AZ utilizes mutual capacitance sensing technology to detect touch inputs. When a conductive object, such as a finger, approaches the touchpad, it causes a change in the capacitance of the sensor. The IC measures this change and triggers a touch detection event.

Detailed Application Field Plans

AT42QT1110-AZ finds applications in various electronic devices, including but not limited to: - Smartphones and tablets - Home appliances - Automotive infotainment systems - Industrial control panels - Consumer electronics

Detailed and Complete Alternative Models

1. AT42QT1010: Single-channel touch sensor IC with similar features but lower sensitivity.
2. AT42QT2120: Dual-channel touch sensor IC with extended functionality and additional touch channels.
3. AT42QT2160: Multi-channel touch sensor IC with advanced noise filtering algorithms and enhanced sensitivity.

These alternative models offer different capabilities and can be chosen based on specific project requirements.

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