Asset Publisher

TSL251R Light-to-Voltage

Sidelooker package


  • Single photodiode and transimpedance architecture
  • 70µs output rise time response
  • High irradiance responsivity 52mV/(µW/cm2) @ λp = 635nm
  • 2X gain lense


  • Enables extremely fast response to change
  • Enables fast response to visible light in range of 400nm to 700nm wavelengths
  • Provides for high sensitivity to detect a small change in light
  • Provides additional sensitivity advantages

Product parameters

Operating Voltage [V] 2.7-5.5
Responsivity [µW/cm²] Medium: 20-150
Responsivity Wavelength [nm] 635
Fast Response Time
Low Noise
Visible Light Cutoff Filter and Lens
Temperature Range [°C] -25 to 85
Packages S-3, SM-3, SOIC-8

General Description

The TSL250R, TSL251R, and TSL252R are light-to-voltage optical sensors, each combining a photodiode and a transimpedance amplifier (feedback resistor = 16 MΩ, 8 MΩ, and 2.8 MΩ respectively) on a single monolithic IC. Output voltage is directly proportional to the light intensity (irradiance) on the photodiode. These devices have improved amplifier offset-voltage stability and low power consumption and are supplied in a 3-lead clear plastic sidelooker package with an integral lens. When supplied in the lead (Pb) free package, the device is RoHS compliant.

This product suits for the following applications:

  • Sport and fitness
  • Lifestyle
  • Gaming

Technical Documents

Name Type Description Version Language
TSL25xR_BD000189_1-00.png Block Diagram TSL25xR Block Diagram 1-00 English
TSL250R-TSL251R-TSL252R_DS000429_1-00.pdf Datasheet Document version 1-00 1-00 English
TSL250R_1R_2R_260R_1R_1RD_PD000448_1-00.pdf Other Product Document EOL Notification TSL250R, TSL251R, TSL252R, TSL260R, TSL261R, TSL261RD, TSL257SM (issued 2018-Apr) 1-00 English