Vishay's VEML7700 is a high-accuracy ambient light digital 16-bit resolution sensor in a miniature (6.8 mm x 2.35 mm x 3.0 mm) transparent package. It includes a highly-sensitive photo diode, a low-noise amplifier, 16-bit A/D converter, and supports an easy to use I²C bus communication interface. The ambient light result is available as a digital value.

VEML7700 Ambient Light Sensor Video

Circuit Block Diagram

Ambient Light Functions

• Filtron^TM technology adaption: close to real human eye response
• O-Trim^TM technology adoption: ambient light sensor (ALS) output tolerance ≤10 %
• 16-bit dynamic range for ambient light detection from 0 lx to about 167 klx with resolution down to 0.005 lx/ct, supports low transmittance (dark) lens design
• 100 Hz and 120 Hz flicker noise rejection
• Excellent temperature compensation
• High dynamic detection resolution
• Software shutdown mode control

Features

• Package type: surface-mount
• Package form: side view
• Dimensions (L x W x H in mm): 6.8 x 2.35 x 3.0
• Integrated modules: ALS
• Supply voltage range V_DD: 2.5 V to 3.6 V
• Communication via I²C interface
• Floor life: 72 h, MSL 4, according to J-STD-020
• Low shut down current consumption: typ. 0.5 μA

Applications

• Ambient light sensor for backlight dimming of TV displays, smart phones, touch phones, PDAs, GPS
• Ambient light sensor for industrial on- /-off-lighting operation
• Optical switch for consumer, computing, and industrial devices and displays