Texas Instruments
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FDC2214RGHT
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FDC2214RGHT

Product Overview

Category

FDC2214RGHT belongs to the category of integrated circuits (ICs) and specifically falls under the sensor ICs category.

Use

The FDC2214RGHT is primarily used for capacitive sensing applications. It enables accurate measurement of capacitance changes, making it suitable for various touch and proximity sensing applications.

Characteristics

  • High accuracy: The FDC2214RGHT offers high-resolution measurements, allowing for precise detection of small capacitance changes.
  • Low power consumption: This IC is designed to operate with low power consumption, making it suitable for battery-powered devices.
  • Digital output: It provides a digital output interface, simplifying integration with microcontrollers or other digital systems.
  • Wide operating voltage range: The FDC2214RGHT can operate within a wide voltage range, enhancing its versatility in different applications.

Package and Quantity

The FDC2214RGHT is available in a compact and industry-standard QFN package. Each package contains one unit of the IC.

Specifications

  • Supply Voltage: 2.7V to 3.6V
  • Operating Temperature Range: -40°C to +85°C
  • Resolution: Up to 28 bits
  • Interface: I2C
  • Capacitance Measurement Range: 0.1 pF to 400 pF

Pin Configuration

The FDC2214RGHT features a 16-pin QFN package with the following pin configuration:

  1. VDD: Power supply voltage
  2. GND: Ground reference
  3. SDA: I2C data line
  4. SCL: I2C clock line
  5. INTB: Interrupt output
  6. DRDYB: Data ready output
  7. CIN1P: Positive input for channel 1
  8. CIN1N: Negative input for channel 1
  9. CIN2P: Positive input for channel 2
  10. CIN2N: Negative input for channel 2
  11. NC: No connection
  12. NC: No connection
  13. NC: No connection
  14. NC: No connection
  15. NC: No connection
  16. NC: No connection

Functional Features

The FDC2214RGHT offers the following functional features:

  • High-resolution capacitance measurement: It can accurately measure small changes in capacitance, enabling precise touch and proximity sensing.
  • Automatic calibration: The IC includes an automatic calibration feature that compensates for environmental changes, ensuring reliable and consistent measurements.
  • Multiple channels: It provides two independent capacitive sensing channels, allowing for simultaneous measurement of different sensors or objects.
  • Configurable settings: The FDC2214RGHT allows users to configure various parameters such as measurement range, output data rate, and interrupt thresholds.

Advantages and Disadvantages

Advantages

  • High accuracy and resolution
  • Low power consumption
  • Digital output interface for easy integration
  • Wide operating voltage range
  • Automatic calibration for improved reliability

Disadvantages

  • Limited capacitance measurement range (0.1 pF to 400 pF)
  • Requires external microcontroller or digital system for data processing

Working Principles

The FDC2214RGHT operates based on the principle of capacitive sensing. It measures changes in capacitance by applying an AC excitation signal to the sensing electrodes and analyzing the resulting impedance. By monitoring the impedance changes, the IC can detect variations in capacitance caused by the presence or proximity of objects.

Application Field Plans

The FDC2214RGHT finds applications in various fields, including but not limited to:

  1. Touchscreens and touch-sensitive controls: It can be used in smartphones, tablets, and other devices with touch interfaces.
  2. Proximity sensing: The IC enables proximity detection in applications such as automatic faucets, gesture recognition systems, and object detection.
  3. Human-machine interfaces: It can be integrated into control panels, buttons, and sliders to provide intuitive and responsive user interactions.
  4. Industrial automation: The FDC2214RGHT is suitable for industrial applications like liquid level sensing, material detection, and quality control.

Alternative Models

For capacitive sensing applications, there are several alternative models available in the market. Some notable alternatives to the FDC2214RGHT include:

  1. AD7147: A capacitive touch controller IC with multiple channels and configurable settings.
  2. CY8CMBR3110: An integrated capacitive touch and proximity sensor IC with a wide range of features and low power consumption.
  3. AT42QT1011: A single-key capacitive touch sensor IC designed for simple touch-sensitive applications.

These alternative models offer similar functionality and can be considered based on specific application requirements.

In conclusion, the FDC2214RGHT is a high-accuracy capacitive sensing IC

10 domande e risposte comuni relative all'applicazione di FDC2214RGHT nelle soluzioni tecniche

Sure! Here are 10 common questions and answers related to the application of FDC2214RGHT in technical solutions:

  1. Q: What is FDC2214RGHT? A: FDC2214RGHT is a highly integrated, high-resolution capacitance-to-digital converter designed for use in capacitive sensing applications.

  2. Q: What are some typical applications of FDC2214RGHT? A: FDC2214RGHT can be used in various applications such as proximity sensing, touch detection, liquid level sensing, and human-machine interfaces.

  3. Q: What is the operating voltage range of FDC2214RGHT? A: FDC2214RGHT operates from a supply voltage range of 2.7V to 3.6V.

  4. Q: How many channels does FDC2214RGHT support? A: FDC2214RGHT supports four independent capacitance measurement channels.

  5. Q: What is the resolution of FDC2214RGHT? A: FDC2214RGHT has a resolution of up to 28 bits, providing high accuracy in capacitance measurements.

  6. Q: Can FDC2214RGHT measure both self-capacitance and mutual capacitance? A: Yes, FDC2214RGHT can measure both self-capacitance and mutual capacitance, making it versatile for different sensing applications.

  7. Q: Does FDC2214RGHT have built-in temperature compensation? A: Yes, FDC2214RGHT features built-in temperature compensation to ensure accurate measurements across varying temperatures.

  8. Q: What communication interface does FDC2214RGHT support? A: FDC2214RGHT supports I2C (Inter-Integrated Circuit) communication interface for easy integration with microcontrollers.

  9. Q: Can FDC2214RGHT operate in a low-power mode? A: Yes, FDC2214RGHT has a low-power mode that reduces power consumption when not actively measuring capacitance.

  10. Q: Is FDC2214RGHT available in a small package? A: Yes, FDC2214RGHT is available in a compact 16-pin VQFN package, making it suitable for space-constrained applications.

Please note that the answers provided here are general and may vary depending on the specific implementation and requirements of your technical solution.