Vishay – VCNL4020C: High Resolution Digital Biosensor for Wearable Applications
Description
The VCNL4020C is a fully integrated biosensor and ambient light sensor. Fully integrated means that the infrared emitter is included in the package. It has 16 bit resolution. It includes a signal processing IC and features Standard I²C communication interface. It features an interrupt function.
Product Benefits:
- Ambient light spectral sensitivity close to that of the human eye
- Combines an IR emitter, proximity photo-diode, and an ambient light sensor
- Supports an external LED connection
- Integrated signal processing IC and 16-bit ADC
- Compact 4.9 mm by 2.4 mm by 0.83 mm rectangular leadless (LLP) package
- Supports I²C bus communication interface
- Ambient light function:
- Detection from 0.25 lx to 16.3 klx
- 100 Hz and 120 Hz flicker noise rejection
- Proximity function:
- Excellent cross-talk immunity
- Programmable LED drive current from 10 mA to 200 mA in 10 mA steps
- Excellent ambient light suppression by signal modulation
- Supply voltage range of 2.5 V to 3.6 V
- LED_Anode voltage range of 2.5 V to 5 V
- I²C bus voltage range from 1.7 V to 5 V
- Low stand-by current consumption of 1.5 μA
- Moisture sensitivity level (MSL) of 4, in accordance with J-STD-020
- RoHS-compliant, halogen-free, Vishay Green
Market Applications:
- Wearables
- Health monitoring
- Heart rate and pulse oximetry measurements
