AD7148ACPZ-1500RL7

Product Overview

Category: Integrated Circuit (IC)

Use: The AD7148ACPZ-1500RL7 is a capacitive touch controller IC used for touch sensing applications.

Characteristics: - High sensitivity and accuracy in touch detection - Low power consumption - Compact size - Easy integration into various electronic devices

Package: LFCSP (Lead Frame Chip Scale Package)

Essence: The AD7148ACPZ-1500RL7 is designed to provide reliable and precise touch sensing capabilities for a wide range of electronic devices.

Packaging/Quantity: The AD7148ACPZ-1500RL7 is typically sold in reels containing 1500 units.

Specifications

• Supply Voltage: 2.6V to 3.6V
• Operating Temperature Range: -40°C to +85°C
• Number of Channels: 14
• Capacitance Resolution: 13 bits
• Communication Interface: I2C
• Package Type: LFCSP
• Dimensions: 4mm x 4mm

Pin Configuration

The AD7148ACPZ-1500RL7 features the following pin configuration:

1. VDD: Power supply voltage
2. GND: Ground
3. SDA: Serial data input/output for I2C communication
4. SCL: Serial clock input for I2C communication
5. IRQ: Interrupt output
6. CH0 to CH13: Touch sensor channels

Functional Features

• Capacitive touch sensing: The AD7148ACPZ-1500RL7 utilizes capacitive sensing technology to detect touch inputs accurately.
• Multi-channel support: With 14 touch sensor channels, it can handle complex touch interfaces.
• Proximity detection: The IC can also detect proximity without direct touch contact.
• Automatic calibration: The AD7148ACPZ-1500RL7 features built-in automatic calibration to ensure consistent and reliable touch detection.
• Low power consumption: Designed for energy-efficient operation, it minimizes power consumption in touch sensing applications.

Advantages and Disadvantages

Advantages: - High sensitivity and accuracy in touch detection - Compact size allows for easy integration into various electronic devices - Low power consumption prolongs battery life in portable devices - Automatic calibration ensures consistent performance

Disadvantages: - Limited number of touch sensor channels may not be suitable for complex touch interfaces requiring more inputs - Requires additional external components for complete touch sensing system implementation

Working Principles

The AD7148ACPZ-1500RL7 operates based on the principle of capacitive sensing. It measures changes in capacitance caused by the presence or absence of a conductive object (such as a finger) near the touch sensor electrodes. These changes are then converted into digital signals that can be processed by a microcontroller or other electronic devices.

Detailed Application Field Plans

The AD7148ACPZ-1500RL7 is widely used in various applications, including but not limited to: - Consumer electronics: smartphones, tablets, remote controls, gaming consoles - Home appliances: touch-sensitive control panels for ovens, refrigerators, washing machines - Automotive: touchscreens, steering wheel controls - Industrial equipment: human-machine interfaces, control panels

Detailed and Complete Alternative Models

1. AD7147ACPZ-500RL7: Similar to the AD7148ACPZ-1500RL7, but with 5 touch sensor channels instead of 14.
2. AT42QT1010-TSHR: Capacitive touch controller IC with 1 touch sensor channel and I2C interface.
3. CY8CMBR3116-LQXI: CapSense® touch controller IC with 16 touch sensor channels and Cypress' proprietary CapSense technology.

These alternative models offer different channel counts, package types, and additional features to suit various touch sensing requirements.

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