●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 nW/cm2 up to 10 mW/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 compensated 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 SMBus-compatible, two-wire, serial interface. Measurements are either continuous or single-shot. The OPT3002 fully-operational power consumption is as low as 0.8 µW at 0.8 SPS on a 1.8-V supply.
● Wide Optical Spectrum: 300 nm to 1000 nm
● Automatic Full-Scale Setting Feature Simplifies Software and Configuration
● Measurement Levels:
● 1.2 nW/cm2 to 10 mW/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
