Overview
The FDC2214QRGHRQ1 is a multi-channel, high-resolution capacitance-to-digital converter (CDC) produced by Texas Instruments. It is part of the FDC2x1x-Q1 family, designed for capacitive sensing applications. This device is particularly suited for environments requiring high sensitivity and noise immunity, such as proximity detection, gesture recognition, and liquid level sensing. The FDC2214QRGHRQ1 is AEC-Q100 qualified, making it suitable for automotive applications, and it operates over a wide temperature range of –40°C to +125°C.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Input Channels | 4 |
| Resolution | Up to 28 bits |
| Supply Voltage | 2.7V to 3.6V |
| Active Supply Current | 2.1 mA |
| Low-Power Sleep Mode Current | 35 µA |
| Shutdown Current | 200 nA |
| Interface | I2C |
| Operating Temperature Range | –40°C to +125°C |
| Maximum Input Capacitance | 250 nF (at 10 kHz with 1 mH inductor) |
| Sensor Excitation Frequency | 10 kHz to 10 MHz |
| Maximum Output Rates (one active channel) | 4.08 kSPS |
| Package Type | 16-WQFN (RGH) |
| Pin Count | 16 |
Key Features
- AEC-Q100 qualified for automotive applications with a temperature range of –40°C to +125°C.
- EMI-resistant architecture to maintain performance in noisy environments.
- High resolution up to 28 bits and high-speed operation with maximum output rates of 4.08 kSPS for one active channel.
- Wide sensor excitation frequency range from 10 kHz to 10 MHz.
- Low power consumption with active current of 2.1 mA, sleep mode current of 35 µA, and shutdown current of 200 nA.
- I2C interface for communication.
- Maximum input capacitance of 250 nF (at 10 kHz with 1 mH inductor).
Applications
The FDC2214QRGHRQ1 is versatile and can be applied in various capacitive sensing applications, including:
- Proximity detection and gesture recognition in smart devices and equipment.
- Liquid level sensing in industrial and automotive systems.
- Automotive applications due to its AEC-Q100 qualification.
- Other contactless sensing solutions where high resolution and noise immunity are crucial.
Q & A
- What is the FDC2214QRGHRQ1 used for? The FDC2214QRGHRQ1 is used for capacitive sensing applications such as proximity detection, gesture recognition, and liquid level sensing.
- What is the resolution of the FDC2214QRGHRQ1? The resolution of the FDC2214QRGHRQ1 is up to 28 bits.
- What is the operating temperature range of the FDC2214QRGHRQ1? The operating temperature range is –40°C to +125°C.
- What interface does the FDC2214QRGHRQ1 use? The FDC2214QRGHRQ1 uses an I2C interface.
- What is the maximum input capacitance of the FDC2214QRGHRQ1? The maximum input capacitance is 250 nF (at 10 kHz with 1 mH inductor).
- Is the FDC2214QRGHRQ1 suitable for automotive applications? Yes, it is AEC-Q100 qualified for automotive applications.
- What is the power consumption of the FDC2214QRGHRQ1 in active mode? The active supply current is 2.1 mA.
- What is the shutdown current of the FDC2214QRGHRQ1? The shutdown current is 200 nA.
- What is the sensor excitation frequency range of the FDC2214QRGHRQ1? The sensor excitation frequency range is from 10 kHz to 10 MHz.
- How many input channels does the FDC2214QRGHRQ1 have? The FDC2214QRGHRQ1 has 4 input channels.
