AD7147AACBZ-500RL7

Product Overview

Category: Integrated Circuit (IC)

Use: Capacitance-to-Digital Converter

Characteristics: - Converts capacitance to a digital value - High-resolution measurement - Low power consumption - Small package size - Easy integration into various applications

Package: CBGA (Ceramic Ball Grid Array)

Essence: The AD7147AACBZ-500RL7 is an IC that enables the conversion of capacitance values into digital data. It offers high precision and low power consumption, making it suitable for a wide range of applications.

Packaging/Quantity: The AD7147AACBZ-500RL7 is available in a CBGA package. The quantity may vary depending on the supplier.

Specifications

• Resolution: 14 bits
• Input Channels: 7
• Supply Voltage: 2.6V to 3.6V
• Operating Temperature Range: -40°C to +85°C
• Interface: I2C

Detailed Pin Configuration

The AD7147AACBZ-500RL7 has the following pin configuration:

1. VDD: Power supply voltage
2. GND: Ground
3. SDA: Serial Data Line (I2C)
4. SCL: Serial Clock Line (I2C)
5. IRQ: Interrupt Request Output
6. CAP1-CAP7: Capacitive sensor inputs
7. REF: Reference voltage input
8. AGND: Analog ground

Functional Features

• Capacitance-to-digital conversion with high resolution
• Automatic calibration for accurate measurements
• Configurable sensitivity and threshold settings
• Interrupt output for event detection
• Sleep mode for power-saving operation

Advantages and Disadvantages

Advantages: - High-resolution measurement enables precise capacitance sensing - Low power consumption for energy-efficient applications - Small package size allows for easy integration into compact designs - Automatic calibration ensures accurate measurements

Disadvantages: - Limited number of input channels (7) - Requires an external reference voltage for operation

Working Principles

The AD7147AACBZ-500RL7 utilizes the principle of capacitance sensing to convert changes in capacitance into digital data. It employs a series of capacitive sensor inputs that detect variations in capacitance caused by proximity or touch. The IC then converts these capacitance values into digital information using its high-resolution analog-to-digital converter.

The device incorporates automatic calibration to compensate for environmental changes and ensure accurate measurements. It also offers configurable sensitivity and threshold settings, allowing customization for different applications.

Detailed Application Field Plans

The AD7147AACBZ-500RL7 finds applications in various fields, including:

1. Proximity Sensing: Used in touch-sensitive interfaces for consumer electronics such as smartphones, tablets, and touchscreens.
2. Human-Machine Interface: Enables gesture recognition and touch detection in industrial control panels, automotive infotainment systems, and home appliances.
3. Proximity Detection: Utilized in security systems for presence detection and proximity-based activation.
4. Liquid Level Sensing: Enables non-contact measurement of liquid levels in tanks and containers.
5. Biomedical Applications: Used in medical devices for non-invasive sensing and monitoring of vital signs.

Detailed and Complete Alternative Models

1. AD7147ACPZ-1500RL7: Similar to AD7147AACBZ-500RL7 but with 15 bits resolution and 14 input channels.
2. AD7147ACPZ-2500RL7: Similar to AD7147AACBZ-500RL7 but with 25 bits resolution and 14 input channels.
3. AD7147ACPZ-500RL7: Similar to AD7147AACBZ-500RL7 but with 14 bits resolution and 14 input channels.

These alternative models offer different specifications and capabilities, allowing users to choose the most suitable option for their specific requirements.

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