OPT3002 Light-to-Digital Sensor

OPT3002 Light-to-Digital Sensor - OPT3002

Recommended alternative parts

  • OPT3001  - The device has the SAME FUNCTIONALITY and PINOUT as the compared device but is NOT an exact equivalent.   It includes human-eye response.


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

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Parametrics Compare all products in Light Sensors

Input Type
Spectral Highlights (none)
Peak Spectral Sensitivity (nm)
Spectral Bandwidth (nm)
Supply Range (Nom)
Interrupt Outputs (Count)
Quiescent Current (Max) (uA)
Signal Bandwidth (none)
Operating Temperature Range (C)
Package Size: mm2:W x L (PKG)
OPT3002 OPT3001 OPT3001-Q1 OPT3006 OPT3007
Light    Light    Light    Light    Light   
I2C    I2C    I2C    I2C    I2C   
Wide Band    Human Eye Response    Human Eye Response    Human Eye Response    Human Eye Response   
505    550    550    550    550   
300 - 1000    460nm - 655nm    460nm - 655nm    460nm - 655nm    460nm - 655nm   
1.6V - 3.6V    1.6V to 3.6V    1.6V to 3.6V    1.6V to 3.6V    1.6V to 3.6V   
YES    YES    YES    YES    NO   
2    2      2    2   
10 samples/sec    10 samples /sec    10 samples /sec    10 samples/sec    10 samples/sec   
-40 to 85    -40 to 85    -40 to 85    -40 to 85    -40 to 85   
6USON: 4 mm2: 2 x 2(USON)    6USON: 4 mm2: 2 x 2(USON)    6USON: 4 mm2: 2 x 2(USON)    6PICOSTAR: 1 mm2: .846 x .946(PICOSTAR)    6PICOSTAR: 1 mm2: .846 x .946(PICOSTAR)   
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