OPT3001DNPR

TEXAS INSTRUMENTS OPT3001DNPR Digital Ambient Light Sensor (ALS)

TEXAS INSTRUMENTS OPT3001DNPR Product Overview

The OPT3001DNPR is a digital ambient light sensor (ALS) from Texas Instruments, designed to measure the intensity of visible light with a spectral response that tightly matches the photopic response of the human eye. The device features strong infrared (IR) rejection, blocking over 99% of IR light, which ensures accurate lux measurements regardless of the light source or the use of dark window materials in industrial designs .

Rated for a supply voltage range of 1.6V to 3.6V, the device consumes a typical operating current of only 1.8 µA, making it ideal for battery-powered systems. Measurements can be made from 0.01 lux up to 83,000 lux without manually selecting full-scale ranges, thanks to the built-in automatic full-scale setting feature. The device supports both continuous and single-shot measurement modes over a I2C- and SMBus-compatible two-wire serial interface . Operating temperature range is -40°C to +85°C . The device is housed in a compact 6-pin USON (DNP) package measuring 2.0mm x 2.0mm x 0.65mm, with 5.5V tolerant I/O for flexible system integration. Packaging is tape and reel with 3,000 units per reel .

TEXAS INSTRUMENTS OPT3001DNPR Key Specifications

TEXAS INSTRUMENTS OPT3001DNPR Key Advantages

The OPT3001DNPR employs precision optical filtering to match the human eye's photopic response, combined with strong IR rejection that blocks over 99% of infrared light. This ensures accurate light measurement that aligns with human visual perception, even under high-IR light sources such as incandescent or halogen lamps, or when mounted behind dark glass for aesthetic industrial designs .

The automatic full-scale setting feature simplifies software development by eliminating the need for manual range selection, enabling measurement over a 23-bit effective dynamic range from 0.01 lux to 83,000 lux. The 12 binary-weighted full-scale range settings with less than 0.2% matching ensure consistent performance across different light levels .

The flexible interrupt system with autonomous operation allows the host processor to sleep while the sensor monitors for wake-up events, significantly reducing system power consumption. The low 1.8 µA operating current and 1.6V to 3.6V wide power supply range make the device ideal for portable and battery-powered applications. The 5.5V tolerant I/O enables direct interfacing with a variety of host controllers without level-shifting circuitry. The extremely compact 2.0mm x 2.0mm USON package is designed for space-constrained applications and automated assembly .

TEXAS INSTRUMENTS OPT3001DNPR Typical Applications

Smartphone and tablet display brightness management
Wearable devices and fitness trackers
Industrial lighting control and automation systems
Automotive interior ambient light sensing
Medical equipment and healthcare devices
Building automation and HVAC lighting control
Consumer electronics and smart home products
Power management systems requiring ambient light feedback

Why Choose the TEXAS INSTRUMENTS OPT3001DNPR?

The OPT3001DNPR combines human-eye matching spectral response, 0.01 lux to 83k lux measurement range, and 1.8 µA low operating current in a compact 2.0mm x 2.0mm USON package from Texas Instruments, a global leader in analog and sensing technology. It delivers stable, accurate, and power-efficient ambient light sensing for applications where precise light measurement, IR rejection, and system design simplicity are critical. The automatic full-scale setting and flexible interrupt system reduce software development effort and host processor overhead, making the OPT3001DNPR an ideal replacement for photodiodes, photoresistors, or other ambient light sensors with less accurate human-eye matching and IR rejection .