Silicon Labs CPT212B & CPT213B TouchXpress Capacitive Sensors
Silicon Labs CPT212B & CPT213B TouchXpress Capacitive Touch Sensors are used to add IEC 60730 Class B capacitive touch to sensing applications. The sensors eliminate the need for complex firmware development and reduce development time for capacitive sensing applications. The CPT212B and CPT213B support up to 13 capacitive touch inputs and are highly-integrated devices that interface via I2C to the host processor. The devices have advanced features like IEC safety library and moisture immunity. No firmware development is needed, and all the capacitive touch sense parameters can be configured using a simple GUI-based configurator.
Features
- No firmware development required
- Simple GUI-based configurator
- 12 Capacitive Sensor inputs with programmable sensitivity
- I2C interface to communicate to and configure from the host
- Lowest power capacitive sense solution
- Active: 200μA
- Sleep: 1μA
- Wake on proximity
- Superior noise immunity: SNR up to 270:1
- Moisture immunity
- Mutually-exclusive touch qualifier
- Buzzer output for audible touch feedback
Applications
- Home appliances
- Instrument / control panels
- White goods
- Medical equipment
- Consumer electronics
- Lighting control
CPT212BD Block Diagram
CPT213BD Block Diagram
Evaluation Kit
Silicon Labs CPT212B & CPT213B Evaluation Kits
Feature 12 capacitive sense pads along with a buzzer for touch feedback.
Published: 2017-07-11
| Updated: 2022-03-24