FDC2212
Overview
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. The sensor in a capacitive sensing system is any metal or conductor, allowing for low cost and highly flexible system design.
- 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 mA
- Low-Power Sleep Mode: 35 uA
