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| Product Bulletin OSM910 May 1999 Position Sensing Detector Type OSM910, OSM910P Dimensions are in inches (millimeters). Features *Excellent position detection capability *High resolution capability *High interelectrode resistance *Fast response time Absolute Maximum Ratings (TA = 25o C unless otherwise noted) Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40o C to +125o C Operating Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40o C to +100o C Reverse Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 V Notes: (1) Position Detection Error is defined by: L 2 I 1 - I2 x I 1 + I2 Incident Position Description The OSM910 Position Sensing Detector (PSD) is a silicon photodiode designed for use in distance or displacement sensing applications. The PSD produces an analog output that is directly proportional to the position of a light spot on the detector active area. The output produced is independent of the light spot intensity, profile, symmetry or size. L = Length of Active Area (2) Alignment pins shown are for " suffix part number only. P" Sensor Detail Reference: Refer to Optek' Application Note 216. s Optek Technology, Inc. 1215 W. Crosby Road Carrollton, Texas 75006 39 (972) 323-2200 Fax (972) 323-2396 Type OSM910, OSM910P Electrical Characteristics (TA = 25o C unless otherwise noted) SYMBOL l P Rl Rl RI ID IS tr Responsivity Responsivity Inter-electrode Resistance Dark Current Saturation Current Rise Time PARAMETER Peak Sensitivity Wavelength MIN TYP MAX UNITS 920 0.30 0.43 160 10 220 2.0 10.0 100 nm A/W A/W KW nA m A m s VR = 5 V TEST CONDITIONS VR = 5 V, l = 660 nm P VR = 5 V, l = 880 nm P VBIAS = 0.1 V VR = 5 V VR = 5 V, l = 880 nm P VR = 5 V, l = 880 nm P RL = 1 KW Typical Performance Curves Position Detection Characterisitics Dark Current vs. Temperature Position Detection Error I1 I2 Position on PSD (mm) Temperature ( o C) Position on PSD (mm) Sensitivity vs. Temperature (Light Source @ 660 nm) Sensitivity vs. Temperature (Light Source @ 880 nm) Spectral Response Temperature (o C) Temperature (o C) Wavelength (nm) Optek reserves the right to make changes at any time in order to improve design and to supply the best product possible. Optek Technology, Inc. 1215 W. Crosby Road Carrollton, Texas 75006 (972) 323-2200 Fax (972) 323-2396 40 |
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