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Texas Instruments OPT4060 RGBW High-Resolution Color Sensor

Texas Instruments OPT4060 RGBW High-Resolution Color Sensor is a single-chip color sensor capable of measuring four channels, each with specific engineered spectral responses. Three of the four channels have peak spectral responses in the red, green, and blue wavelengths, with the fourth channel having a wide-band spectral response. With measurements from these channels, important characteristics of the lighting environment can be extracted, like (i) light intensity (lux) and (ii) color. The OPT4060 is available in a small SOT-5X3 package.

The OPT4060 has a selectable addressing scheme to enable up to four devices on a shared I²C bus. The spectral response of the channels has been specially tuned for color detection, with strong rejection for wavelengths away from the respective peaks, especially the NIR (850nm and 940nm) region. The filters use advanced filter technology that provides excellent filter performance even at higher angles of light incidence.

The engineered optical filter on OPT4060 provides strong infrared rejection, which aids in maintaining high accuracy despite placing the sensor under dark glass. This feature is a common requirement in the industrial design of end products due to aesthetics. The Texas Instruments OPT4060 is designed for systems requiring light-level detection to enhance user experience by providing information about the intensity and color of the illumination.

Features

High-precision, high-speed color light-to-digital conversion over high-speed I²C interface
Four-channel sensing using precision optical filters
- Three channels with peak responses in red, green, and blue wavelengths and >99.99% NIR rejection (850nm)
- Clear wide bandwidth channel
High-resolution RGB color measurement
Semi-logarithmic output with seven binary logarithmic full-scale light ranges and highly linear response within each range
Built-in automatic full-scale light range selection logic, which switches measurement range based on input light condition with the excellent gain matching between ranges
12 configurable conversion times from 600µs to 800ms per channel is an excellent choice for a wide variety of high-speed and high-precision applications

26 bits of effective dynamic range from 2.15mlux to 144klux
External pin interrupt for hardware synchronized trigger and interrupts
24µA low operating current
2µA ultra-low power standby
-40°C to +85°C operating temperature range
1.6V to 3.6V wide power-supply range
5.5V Tolerant I/Os
Selectable I²C address
Small-form factor of 2.1mm × 1.9mm × 0.6mm SOT-5X3 package

Applications

Display brightness and color adjustments
Camera image correction
Auto white balancing

Building automation and control
Lighting control systems
Tablet and notebook computers

Texas Instruments OPT4060 RGBW High-Resolution Color Sensor

Features

Applications

Functional Block Diagram

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