Azoteq IQS227D Single-Channel Capacitive Proximity and Touch Controllers are fully integrated self-capacitive sensors with dual outputs (touch and proximity outputs). Azoteq IQS227D is sub-5μA in low-power mode while sensing proximity and offers advanced on-chip digital signal processing. These sensors serve a wide variety of applications, including LCD/plasma/LED TVs, GSM cellular phones, LED flashlights, office equipment, and more.
Features
- Sub-5μA in low-power mode while sensing proximity
- Automatic tuning implementation (ATI) – automatic tuning of sense electrode
- Internal capacitor implementation (ICI) – reference capacitor on-chip
- 2.4V to 5.5V supply voltage
- Minimal external components
- Advanced on-chip digital signal processing
- User-selectable (OTP) – four power modes
- I/O sink/source
- Time-out for stuck key
- Output mode (direct/latch/toggle)
- Proximity and touch button sensitivity
- RoHS2 compliant
more information: https://www.azoteq.com/images/stories/pdf/iqs227d_datasheet.pdf
