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DATA SHEET
LDC3114 4-Channel Hybrid Inductive Touch and Inductance to Digital Converter
1 Features
- Multiple modes of operation:
- Raw data mode: access
pre-processed inductance measurement data to enable advanced algorithms
on MCU for linear sensing
- Button mode: button press
detection with baseline tracking and advanced on-chip post
processing
- Force level measurement
of touch buttons
- Pin and register compatible to
LDC2114
- Robust EMI performance allows for
CISPR 22 and CISPR 24 compliance
- Four independent channel
operation
- Configurable scan rates:
- 0.625 SPS to 160 SPS
- Continuous scanning
option
- Advanced button press detection
algorithms:
- Adjustable force
threshold per button
- Environmental shift
compensation
- Simultaneous button press
detection
- Low current consumption:
- One button: 6 µA at 0.625
SPS
- Two buttons: 72 µA at 20
SPS
- Temperature range
- TSSOP (16) : –40°C to
+125°C
- Interface:
- 1.8-V and 3.3-V compliant
I2C and INTB
- 1.8-V logic output per
channel for buttons