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VEML7700-TT

VEML7700-TT

Vishay Semiconductor Opto Division
Optical Sensor Ambient I2C 4-SMD, J-Lead
Active19,062 in stock

Overview

The VEML7700-TT is a high-accuracy, 16-bit ambient light sensor (ALS) with an I2C interface housed in a compact Heimdall package. It features Filtron technology for spectral sensitivity close to the human eye and includes 100 Hz and 120 Hz flicker noise rejection to ensure stable measurements in varied lighting conditions.

Why Choose This Part

This sensor offers a massive dynamic range from 0 to 140 klx with a high resolution of 0.0042 lx/ct, making it suitable for both dark environments and direct sunlight. It is extremely power-efficient, consuming only 0.5 microamps in shutdown mode and featuring a programmable Power Saving Mode to further reduce current during operation.

Applications

LCD Backlight Control
Adjusting display brightness in tablets and notebooks based on ambient lighting to save power and improve user comfort.
Smart Home Lighting
Triggering automated indoor or outdoor lighting systems when natural light levels drop below a specific threshold.
Industrial Signaling
Monitoring ambient conditions for outdoor digital signage and industrial control panels to maintain visibility.

Key Specifications

Type Ambient
Output Type I2C
Mounting Type Surface Mount
Package / Case 4-SMD, J-Lead
Voltage - Supply 2.5V ~ 3.6V
Proximity Detection Yes
Operating Temperature -25degC ~ 85degC
Supplier Device Package Heimdall

Getting Started

Interface the sensor via its I2C pins using a 2.5V to 3.6V supply, ensuring the bus pull-up resistors are tied to the same rail. Developers can quickly prototype using the Adafruit VEML7700 Lux Sensor Breakout board which provides ready-made libraries for Arduino and CircuitPython.

VEML7700 Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number Proximity Detection Stock
VEML7700-TT (this part) Yes 19,062
VEML7700-TR Tape & Reel No 7,507
Also available as: VEML7700

Also Consider

TSL2591 ams OSRAM - Offers an even wider dynamic range and dual-diode architecture for separate infrared and visible light sensing.
OPT3001 TITexas Instruments - Provides a high-precision spectral response that very closely matches the human eye (photopic response) across all light sources.