VCNL4020C Datasheet, PDF (1/16 Pages) Vishay Siliconix – High Resolution Digital Biosensor for Wearable Applications with I2C Interface

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VCNL4020C
Vishay Semiconductors
High Resolution Digital Biosensor for Wearable Applications
with I²C Interface
IR anode 1
SDA 2
INT 3
SCL 4
V_DD 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 V_DD: 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 range: 1.7 V to 5 V
• Floor life: 72 h, MSL 4, according to J-STD-020
• Low stand by current consumption: 1.5 μA
• Material categorization: for definitions of compliance
please see www.vishay.com/doc?99912
OPTICAL BIOSENSORS FUNCTION
• Built-in infrared emitter and broader sensitivity
photodiode allows to also work with green and red LEDs
• 16 bit effective resolution ensures excellent cross talk
immunity
• Programmable LED drive current from 10 mA to 200 mA in
10 mA steps
• Excellent ambient light suppression through signal
modulation
AMBIENT LIGHT FUNCTION
• Built-in ambient light photo-pin-diode with
close-to-human-eye sensitivity
• 16 bit dynamic range from 0.25 lx to 16 klx
• 100 Hz and 120 Hz flicker noise rejection
PRODUCT SUMMARY
PART
NUMBER
OPERATING
VOLTAGE
RANGE
(V)
I²C BUS
VOLTAGE
RANGE
(V)
VCNL4020C
2.5 to 3.6
1.7 to 5
Note
(1) _{Adjustable through I}2_{C interface}
LED PULSE
CURRENT ⁽¹⁾
(mA)
10 to 200
AMBIENT
LIGHT
RANGE
(lx)
0.25 to 16 383
SPECTRAL
BANDWIDTH
RANGE
λ_0.5 (nm)
550 to 970
OUTPUT
CODE
16 bit, I²C
ADC RESOLUTION
BIOSENSOR / AMBIENT
LIGHT SENSOR
16 bit / 16 bit
Rev. 1.0, 12-Jul-16
1
Document Number: 84350
For technical questions, contact: [e-mail]
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000