EMI-resistant 12-bit capacitance/digital converter 'FDC2214'
The FDC2214 is suitable for proximity/level sensing applications. Capacitive sensing is a low-power, low-cost, high-resolution non-contact sensing technology that can be used in a wide range of applications, from proximity detection to gesture recognition and remote liquid level sensing. Since any metal or conductor can be used as a sensor in capacitive sensing systems, it allows for low-cost and highly flexible system design. The main limitation on the sensitivity of capacitive sensing applications is primarily the noise sensitivity of the sensor. The FDC2214 maintains high performance even in noisy environments due to its innovative EMI-resistant architecture. It is suitable for capacitive sensing solutions with a high-speed, high-resolution capacitance/digital converter that is resistant to noise and EMI. It employs an innovative narrowband base architecture that provides high noise and interference rejection performance, achieving high speed and high resolution. Additionally, it has a wide excitation frequency range, enabling flexible system design. *For more details, please contact us.*
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basic information
【Features】 ■EMI-resistant architecture ■Maximum output speed (for 1 active channel): 4.08ksps ■Maximum input capacitance: 250nF (using 1mH inductor at 10kHz) ■Sensor excitation frequency: 10kHz to 10MHz ■Number of input channels: 4 ■Resolution: up to 28 bits ■System noise floor: 0.3fF (at 100sps) ■Power supply voltage range: 2.7V to 3.6V ■Current consumption: 2.1mA during active mode, 35μA in low power sleep mode, 200nA in shutdown ■Interface: I2C ■Temperature range: -40°C to +125°C ■4mm square WQFN package *For more details, please contact us.
Applications/Examples of results
【Applications】 ■ Proximity sensors, gesture recognition, liquid level sensors (including conductive liquids such as detergents, soaps, and inks), collision avoidance, rain/fog/ice/snow sensors, vehicle door/kick sensors, material size detection, etc. *For more details, please contact us.
Company information
Texas Instruments (Headquarters: Dallas, Texas, USA; Chairman, President, and CEO: Rich Templeton; Abbreviation: TI) supports customers in developing new electronic devices that make the world "more convenient, healthier, safer, environmentally friendly, and enjoyable," and works together to solve challenges. TI has manufacturing, design, and sales locations in over 30 countries worldwide and continues to pursue innovation. TI's analog ICs and embedded processing support everyday life from behind the scenes in a society overflowing with digital devices. The company is actively investing in products and technologies for markets that will become increasingly important in the future, such as the environment, energy, healthcare, medical devices, and security. Technical Inquiry Contact TI Japan Product Information Center 【http://www.tij.co.jp/pic/】
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