TSL257

TSL257 High-Sensitivity Light-to-Voltage Converter General Description The TSL257 is a high-sensitivity low-noise light-to-voltage optical converter that combines a photodiode and a transimpedance amplifier on a single monolithic CMOS integrated circuit. Output voltage is directly proportional to light intensity (irradiance) on the photodiode. The TSL257 has a transimpedance gain of 320MΩ. The device has improved offset voltage stability and low power consumption and is 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. Ordering Information and Content Guide appear at end of datasheet. Figure 1: Added Value of Using TSL257 Key Benefits & Features The benefits and features of TSL257, High-Sensitivity Light-to-Voltage Converter are listed below: Benefits Features Enables Extremely Fast Response to Change Single Photo-Diode and Trans Impedance Architecture Enables Fast Response to Visible Light in Range of 400nm to 700nm Wavelengths 160μs Output Rise-Time Response Provides for High Sensitivity to Detect a Small High Irradiance Responsivity: Change in Light Typically 1.68V/(μW/cm2) at λp = 645nm Provides Additional Sensitivity Advantages 2x Gain Lens Provides Full Dynamic Range Rail-To-Rail Output Swing Converts Light Intensity to Output Voltage Monolithic Silicon IC Containing Photodiode, Operational Amplifier, and Feedback Components Hi...