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VCNL4020C
Vishay Semiconductors
High Resolution Digital Biosensor for Wearable Applications with I2C Interface
IR anode SDA INT SCL VDD
1 2 3 4 5
22620
10 IR cathode 9 GND 8 GND
7 nc 6 nc
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.
APPLICATIONS • Wearables • Health monitoring • Pulse oximetry
FEATURES • Package type: surface mount • Package form: SMD • Dimensions (L x W x H in mm): 4.90 x 2.40 x 0.83 • Integrated modules: infrared emitter (IRED),
ambient light sensor (ALS), photo diode (PD), and signal conditioning IC • Interrupt function • Supply voltage range VDD: 2.5 V to 3.6 V • Supply voltage range IR anode: 2.5 V to 5 V • Communication via I2C interface • I2C bus H-level ran.