TSL250RD, TSL251RD, TSL260RD, TSL261RD Light-to-Voltage Optical Sensors The TSL250RD, TSL251RD, TSL260RD, and TSL261RD are General Description light-to-voltage optical sensors, each combining a photodiode and a transimpedance amplifier on a single monolithic IC. The TSL250RD and TSL260RD have an equivalent feedback resistance of 16 M and a photodiode measuring 1 square mm. The TSL251RD and TSL261RD have an equivalent feedback resistance of 8 M and a photodiode measuring 0.5 square mm. 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. Ordering Information and Content Guide appear at end of datasheet. Key Benefits & Features The benefits and features of TSL250RD, TSL251RD, TSL260RD, and TSL261RD Light-to-Voltage Optical Sensors, are listed below: Figure 1: Added Value of Using TSL250RD / TSL251RD / TSL260RD / TSL261RD Benefits Features Enables Extremely Fast Response to Single Photo-Diode and Transimpedance Architecture Change Output Rise-Time Response, Typically Enables Fast Response to Visible Light in 260s (TSL250RD, TSL260RD) Range of 400nm to 700nm Wavelengths 70s (TSL251RD, TSL261RD) High Irradiance Responsivity, Typically Provides for High Sensitivity to Detect a 2 64mV/(W/cm ) p = 640nm (TSL250RD) Small Change in Light 2 58mV/(W/cm ) p = 940nm (TSL260RD) Reduces Board Space Requirements 5mm x 6.2mm SOIC (D) Package while Simplifying Designs Monolithic Silicon IC Containing Photodiode, Operational Amplifier, and Feedback Components Converts Light Intensity to a Voltage Single Voltage Supply Operation Low Dark (Offset) Voltage (10mV Max) Low Supply Current (1.1mA Typical) ams Datasheet Page 1 v1-00 2016-Jun-07 Document FeedbackTS L 2 5 0 R D, TS L 2 5 1 R D, T S L 2 6 0 R D, TS L 2 6 1 R D Ge n e r a l De s c ri p t i o n Wide Supply-Voltage Range (2.7V to 5.5V) Low-Profile Surface-Mount Package: Clear Plastic for TSL250RD and TSL251RD Visible Light-Cutoff Filter Plastic for TSL260RD and TSL261RD Lead (Pb) Free and RoHS Compliant Package Functional Block Diagram The functional blocks of this device are shown below: Figure 2: TSL250RD, TSL251RD, TSL260RD, and TSL261RD Voltage Output + Page 2 ams Datasheet Document Feedback v1-00 2016-Jun-07