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TSL257T Datasheet(PDF) 3 Page - ams AG |
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TSL257T Datasheet(HTML) 3 Page - ams AG |
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3 / 11 page  TSL257T HIGH-SENSITIVITY LIGHT-TO-VOLTAGE CONVERTER TAOS065B − APRIL 2007 2 r r Copyright E 2007, TAOS Inc. The LUMENOLOGY r Company www.taosinc.com Absolute Maximum Ratings over operating free-air temperature range (unless otherwise noted)† Supply voltage, VDD (see Note 1) 6 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Output current, IO ±10 mA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Duration of short-circuit current at (or below) 25°C 5 s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Operating free-air temperature range, TA −25°C to 85°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Storage temperature range, Tstg −25°C to 85°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Solder conditions in accordance with JEDEC−J−SRD−020A, maximum temperature 260°C . . . . . . . . . . . . . . † Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. NOTE 1: All voltages are with respect to GND. Recommended Operating Conditions MIN MAX UNIT Supply voltage, VDD 2.7 5.5 V Operating free-air temperature, TA 0 70 °C Electrical Characteristics at VDD = 5 V, TA = 25°C, λp = 640 nm, RL = 10 kΩ (unless otherwise noted) (see Notes 2, 3, and 4) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT VD Dark voltage Ee = 0 0 15 mV V Maximum output voltage swing VDD = 4.5 V, No Load 4.49 V VOM Maximum output voltage swing VDD = 4.5 V, RL = 10 kΩ 4 4.2 V VO Output voltage Ee = 2.93 μW/cm2 1.5 2 2.5 V αVD Temperature coefficient of dark voltage (VD) TA = 0°C to 70°C −15 μV/°C Re Irradiance responsivity See Note 5 680 mV/(μW/cm2) PSRR Power supply rejection ratio fac = 100 Hz, see Note 6 55 dB pp y j fac = 1 kHz, see Note 6 35 dB IDD Supply current Ee = 2.93 μW/cm2 2 3.8 mA NOTES: 2. Measured with RL = 10 kΩ between output and ground. 3. Optical measurements are made using small-angle incident radiation from a light-emitting diode (LED) optical source. 4. The input irradiance Ee is supplied by an AlInGaP LED with peak wavelength λp = 640 nm. 5. Irradiance responsivity is characterized over the range VO = 0.1 V to 4.5 V. 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. 6. Power supply rejection ratio PSRR is defined as 20 log (ΔVDD(f)/ΔVO(f)) with VDD(f = 0) = 5 V and VO(f = 0) = 2 V. Switching Characteristics at VDD = 5 V, TA = 25°C, λp = 640 nm, RL = 10 kΩ (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT tr Output pulse rise time, 10% to 90% of final value See Note 10 and Figure 1 160 250 μs tf Output pulse fall time, 10% to 90% of final value See Note 10 and Figure 1 150 250 μs ts Output settling time to 1% of final value See Note 10 and Figure 1 330 μs Integrated noise voltage f = dc to 1 kHz Ee = 0 200 μVrms f = 10 Hz Ee = 0 6 Vn Output noise voltage, rms f = 100 Hz Ee = 0 6 μV/√Hz rms n pg , f = 1 kHz Ee = 0 7 μ / NOTE 7: Switching characteristics apply over the range VO = 0.1 V to 4.5 V. |
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