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P9696-103 Datasheet(PDF) 3 Page - Hamamatsu Corporation |
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P9696-103 Datasheet(HTML) 3 Page - Hamamatsu Corporation |
3 / 5 page PbSe photoconductive detectors P9696 series, P3207-07 3 S/N vs. supply voltage (P9696-02) S/N vs. chopping frequency Supply voltage (V) 120 80 (Typ. Ta=25 °C) 0 0 200 600 800 1000 1200 1600 1400 400 0 5 15 10 20 20 100 40 60 S (Signal) N (Noise) Light source: black body 500 K Incident energy: 16.7 μW/cm 2 Chopping frequency: 600 Hz Frequency bandwidth: 60 Hz Supply voltage is the value which contains load resistance. Chopping frequency (Hz) 10 0 10 2 10 1 10 3 10 4 10 1 10 2 10 3 N (Noise) S (Signal) S/N (Ta=25 °C) Light source: black body 500 K Incident energy: 16.7 μW/cm 2 Supply voltage: 15 V KIRDB0440EA KIRDB0441EA Photo sensitivity vs. element temperature Dark resistance, rise time vs. element temperature Element temperature (°C) (Typ. Ta=25 °C) 10 1 10 2 -20 10 3 -10 0 10 20 30 40 50 Light source: black body 500 K Supply voltage: 15 V Incident energy: 16.7 μW/cm 2 Chopping frequency: 600 Hz Element temperature (°C) (Typ. Ta=25 °C) 10 1 10 2 10 3 020 10 40 30 50 -20 -10 Dark resistance Rise time KIRDB0442EA KIRDB0443EA Cooling the device enhances its sensitivity, but the sensitivity also depends on the load resistance in the circuit. Increasing the chopping frequency reduces the 1/f noise and results in an S/N improvement. The S/N can also be improved by narrowing the noise bandwidth using a lock-in ampli¿er. |
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