FDC2214-Q1 Series
4-Ch, 28-bit, automotive capacitance to digital converter
Manufacturer: Texas Instruments
Catalog
4-Ch, 28-bit, automotive capacitance to digital converter
Key Features
• Qualified for automotive applicationsAEC-Q100 qualified with the following results:Device temperature grade 1: –40°C to +125°C ambient operating temperature rangeDevice HBM ESD classification level 2Device CDM ESD classification level C5EMI-resistant architectureMaximum output rates (one active channel):13.3kSPS (FDC2112-Q1, FDC2114-Q1)4.08kSPS (FDC2212-Q1, FDC2214-Q1)Maximum input capacitance: 250nF (at 10kHz with 1mH inductor)Sensor excitation frequency: 10kHz to 10MHzNumber of channels: 2, 4Resolution: up to 28 bitsRMS noise: 0.3fF at 100SPS and fSENSOR = 5MHzSupply voltage: 2.7V to 3.6Vpower consumption: active: 2.1mALow-power sleep mode: 35µAShutdown: 200nAInterface: I2CTemperature range: –40°C to +125°CQualified for automotive applicationsAEC-Q100 qualified with the following results:Device temperature grade 1: –40°C to +125°C ambient operating temperature rangeDevice HBM ESD classification level 2Device CDM ESD classification level C5EMI-resistant architectureMaximum output rates (one active channel):13.3kSPS (FDC2112-Q1, FDC2114-Q1)4.08kSPS (FDC2212-Q1, FDC2214-Q1)Maximum input capacitance: 250nF (at 10kHz with 1mH inductor)Sensor excitation frequency: 10kHz to 10MHzNumber of channels: 2, 4Resolution: up to 28 bitsRMS noise: 0.3fF at 100SPS and fSENSOR = 5MHzSupply voltage: 2.7V to 3.6Vpower consumption: active: 2.1mALow-power sleep mode: 35µAShutdown: 200nAInterface: I2CTemperature range: –40°C to +125°C
Description
AI
Capacitive sensing is a low-power, high-resolution contactless sensing technique that can be applied to a variety of applications ranging from proximity detection to gesture recognition. The sensor in a capacitive sensing system is any metal or conductor, allowing for highly flexible system design.
The main challenge limiting sensitivity in capacitive sensing applications is noise susceptibility of the sensors. With the FDC2x1x-Q1 resonant sensing architecture, performance can be maintained even in presence of fluorescent light.
The FDC2x1x-Q1 is a multi-channel family of high-resolution, high-speed capacitance-to-digital converters for implementing capacitive sensing solutions. The devices employ an innovative narrow-band based architecture to offer high rejection of noise while providing high resolution at high speed. The devices support a wide excitation frequency range, offering flexibility in system design.
Capacitive sensing is a low-power, high-resolution contactless sensing technique that can be applied to a variety of applications ranging from proximity detection to gesture recognition. The sensor in a capacitive sensing system is any metal or conductor, allowing for highly flexible system design.
The main challenge limiting sensitivity in capacitive sensing applications is noise susceptibility of the sensors. With the FDC2x1x-Q1 resonant sensing architecture, performance can be maintained even in presence of fluorescent light.
The FDC2x1x-Q1 is a multi-channel family of high-resolution, high-speed capacitance-to-digital converters for implementing capacitive sensing solutions. The devices employ an innovative narrow-band based architecture to offer high rejection of noise while providing high resolution at high speed. The devices support a wide excitation frequency range, offering flexibility in system design.
