OPT3002 Datasheet | Texas Instruments

ures - 1 Wide Optical Spectrum: 300 nm to 1000 nm - Automatic Full-Scale Setting Feature Simplifies Software and Configuration - Measurement Levels: - 1.2 n W/cm2 to 10 m W/cm2 - 23-Bit Effective Dynamic Range With Automatic Gain Ranging - 12 Binary-Weighted, Full-Scale Range Settings: < 0.2% (typ) Matching Between Ranges - Low Operating Current: 1.8 µA (typ) - Operating Temperature: - 40°C to +85°C - Wide Power-Supply: 1.6 V to 3.6 V - 5.5-V Tolerant I/O - Flexible Interrupt System - Small Form Factor: 2.0 mm × 2.0 mm × 0.65 mm 2 Applications - Intrusion and Door-Open Detection Systems - System Wake-Up Circuits - Medical and Scientific Instrumentation - Display Backlight Controls - Lighting Control Systems - Tablet and Notebook puters - Thermostats and Home Automation Appliances - Outdoor Traffic and Street Lights 3 Description The OPT3002 light-to-digital sensor provides the functionality of an optical power meter within a single device. This optical sensor greatly improves system performance over photodiodes and photoresistors. The OPT3002 has a wide spectral bandwidth, ranging from 300 nm to 1000 nm. Measurements can be made from 1.2 n W/cm2 up to 10 m W/cm2, without the need to manually select the full-scale ranges by using the built-in, full-scale setting feature. This capability allows light measurement over a 23-bit effective dynamic range. The results are pensated for dark-current effects, as well as other temperature variations. Use the OPT3002 in optical spectral systems that require detection of a variety of wavelengths, such as optically-based diagnostic systems. The interrupt pin system can summarize the result of the measurement with one digital pin. Power consumption is very low, allowing the OPT3002 to be used as a low-power, battery-operated, wake-up sensor when an enclosed system is opened. The OPT3002 is fully integrated and provides optical power reading directly from the I2C- and SMBuspatible, two-wire, serial interface. Measurements are either...