Description
Capacitive sensing is a low-power, low-cost, highresolution contactless sensing technique that can be applied to a variety of applications ranging from proximity detection and gesture recognition to remote liquid level sensing.
Features
- 1 EMI-Resistant Architecture.
- Maximum Output Rates (one active channel):.
- 13.3 ksps (FDC2112, FDC2114).
- 4.08 ksps (FDC2212, FDC2214).
- Maximum Input Capacitance: 250 nF (at 10 kHz with 1 mH inductor).
- Sensor Excitation Frequency: 10 kHz to 10 MHz.
- Number of channels: 2, 4.
- Resolution: up to 28 bits.
- System Noise Floor: 0.3 fF at 100 sps.
- Supply Voltage: 2.7 V to 3.6 V.
- Power Consumption: Active: 2.1.