link to page 6 link to page 6 link to page 6 TSL257 − Electrical Characteristics SymbolParameterTest ConditionsMinTypMaxUnit f Power supply rejection ac = 100Hz (8) 55 dB PSRR ratio fac = 1kHz (8) 35 dB E I e = 1.54μW/cm2, DD Supply current 1.9 3.5 mA λp = 470nm (4) Note(s): 1. Measured with RL = 10kΩ between output and ground. 2. Optical measurements are made using small-angle incident radiation from a light-emitting diode (LED) optical source. 3. The input irradiance is supplied by a GaN/SiC light-emitting diode with the following characteristics: peak wavelength λp = 428nm, spectral halfwidth Δλ½ = 65nm. 4. The input irradiance is supplied by an InGaN light-emitting diode with the following characteristics: peak wavelength λp = 470nm, spectral halfwidth Δλ½ = 35nm. 5. The input irradiance is supplied by a GaP light-emitting diode with the following characteristics: peak wavelength λp = 565nm, spectral halfwidth Δλ½ = 28nm. 6. The input irradiance is supplied by an AlGaAs light-emitting diode with the following characteristics: peak wavelength λp = 645nm, spectral halfwidth Δλ½ = 25nm. 7. Irradiance responsivity is characterized over the range VO = 0.1V to 4.5V. The best-fit straight line of Output Voltage VO versus Irradiance Ee over this range will typically have a positive extrapolated VO value for Ee = 0. 8. Power supply rejection ratio PSRR is defined as 20 log (ΔVDD(f )/ΔVO(f )) with VDD(f = 0) = 5V and VO(f = 0) = 2V. Page 6ams Datasheet Document Feedback [v1-01] 2018-May-04 Document Outline General Description Key Benefits & Features Functional Block Diagram Pin Assignment Absolute Maximum Ratings Electrical Characteristics Operating Conditions Parameter Measurement Information Typical Operating Characteristics Package Mechanical Data Plastic Single-In-Line Side-Looker Package Ordering & Contact Information RoHS Compliant & ams Green Statement Copyrights & Disclaimer Document Status Revision Information Content Guide
