ams AG - global leader in the design and manufacture of high performance analog ICs (integrated circuits)

TSL261 Light-to-Voltage

Low-noise sidelooker package


The TSL260R, TSL261R, and TSL262R are infrared light-to-voltage optical sensors, each combining a photodiode and a trans-impedance 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 plastic sidelooker package with an integral visible light cutoff filter and lens. When supplied in the lead (Pb) free package, the device is RoHS compliant.

Key Features

  • Single photo-diode and trans impedance architecture
  • 70µs output rise-time response
  • High Irradiance Responsivity 43.5mV/(µW/cm2) @ λp = 645nm
  • 2X gain lense
  • Rail-to-rail output swing

Key Benefits

  • 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
  • Provides full dynamic range

Product Facts

Operating Voltage [V] 2,7-5,5
Responsivity [uW/cm²] Medium: 20-150
Responsivity Wavelength [nm] 940
Fast Response Time
Low Noise
Visible Light Cutoff Filter and Lens √ S and SM Package
Temperature Range [°C] -25 to 85
Packages S-3, SM-3, SOIC-8

Additional Information

  • Infra-Red sensing
  • Proximity sensing