Duo-Lateral, Super Linear PSD s

Transcription

1 Duo-Lateral, Super Linear PSD s Position Sensing Detectors (PSD) The Super Linear Position Sensors feature state of the art duo-lateral technology to provide a continuous analog output proportional to the displacement of the centroid of a light spot from the center, on the active area. s continuous position sensors, these detectors are unparalleled; offering position accuracies of 99% over 64% of the sensing area. These accuracies are achieved by duo-lateral technology, manufacturing the detectors with two separate resistive layer, one located on the top and the other at the bottom of the chip. One or two dimensional position measurements can be obtained using these sensors. reverse bias should be applied to these detectors to achieve optimum current linearity at high light levels. For position calculations and further details on circuit set up, refer to the Photodiode Characteristics section of the catalog. The maximum recommended power density incident on the duo lateral PSDs are 1 mw / cm 2. For optimum performance, incident beam should be perpendicular to the active area with spot size less than 1mm in diameter. PPLICTIONS Beam lignment Position Sensing ngle Measurement Surface Profiling Height Measurements Targeting Guidance System Motion nalysis FETURES Super Linear Ultra High ccuracy Wide Dynamic Range High Reliability Duo Lateral Structure 47

2 Duo-Lateral Super Linear PSD s Typical Electro-Optical Specifications at T =23ºC Model Number Position Sensing rea rea (mm 2 ) Dimension (mm) Responsivity (/W) 670 nm Position Detection Error (µm) Over 80% of Length 64% of Sensing rea Dark Current (n) -15 V, SL Series -5 V, DL Series Capacitance (pf) -15 V, SL Series -5 V, DL Series Rise Time (µs) 670 nm 50 Ω Position Detection Drift (µm / C) Inter-electrode Resistance (kω) min. typ. typ. typ. max. typ. max. typ. typ. min. max. Temp Range ( C) Operating Storage Package Style One-Dimensional Series, Metal Package (V BIS =-15V) SL x / TO-5 SL x / TO-8 One-Dimensional Series, Ceramic Package (V BIS =-15V) -10 ~ ~ +80 SL x SL x / 8-pin DIP SL x SL x ~ ~ / 1 4-pin DIP 49 / 24-pin DIP SL x / Ceramic SL x 2.5 Two-Dimensional Series, Metal Package (V BIS =-5V) / Special DL DLS sq DLS-2S DL sq DLS ~ ~ / TO-8 75 / TO / TO-8 DL sq / Special DL sq / Special Two-Dimensional Series, Ceramic Package (V BIS =-5V) DLS sq DLS sq ~ ~ / Ceramic Two-Dimensional Series, Low-Cost Ceramic Package (V BIS =-5V) DL-10C sq / Ceramic 5 25 DL-20C sq / Ceramic -10 ~ ~ +80 The position temperature drift specifications are for the die mounted on a copper plate without a window and the beam at the electrical center of the sensing area. The DLS Series are packaged with /R coated windows and have a lower dark current than the DL series. lso available in the same package as DL-10 or DL-20. Specify either DLS-10-1 or DLS For mechanical drawings please refer to pages 58 thru 69. * Non-Condensing temperature and Storage Range, Non-Condensing Environment. NOTES: 1. DL(S) series are available with removable windows. 2. Chip centering within ± 0.010". 48

3 1. Parameter Definitions: = Distance from top of chip to top of glass. a = Photodiode node. B = Distance from top of glass to bottom of case. c = Photodiode Cathode (Note: cathode is common to case in metal package products unless otherwise noted). W = Window Diameter. F.O.V. = Filed of View (see definition below). 2. Dimensions are in inches (1 inch = 25.4 mm). 3. Pin diameters are ± 0.002" unless otherwise specified. 4. Tolerances (unless otherwise noted) General: 0.XX ±0.01" 0.XXX ±0.005" Chip Centering: ±0.010" Dimension : ±0.015" 5. Windows ll UV Enhanced products are provided with QURTZ glass windows, ± 0.002" thick. ll XUV products are provided with removable windows. ll DLS PSD products are provided with /R coated glass windows. ll FIL photoconductive and photovoltaic products are epoxy filled instead of glass windows. For Further ssistance Please Call One of Our Experienced Sales and pplications Engineers Or - On the Internet at 57

4 ll units in inches. Pinouts are bottom view. 63

5 ll units in inches. Pinouts are bottom view. SPOT-2DMI SC-4D SL3-1 SPOT-2D SPOT-3D SPOT-4D SPOT-4DMI SPOT-4DUV QD7-0 SL5-1 QD QD7-0 SPOT-9D SPOT-9DMI SC-10D SC-25D 64

6 ll units in inches. 65

7 ll units in inches. Pinouts are top view. 51 Low Cost Ceramic Special 52 Special 53 SL-30 2V-76 2V C Two Rows of Pins Even Numbered Pins these Rows B Element rray C Two Rows of Pins Odd Numbered Pins these Rows C Circular Hole Dia Ellipse X E D Typ. F Pin Diameter = Dimensions P/N B C D E F 2V PIN-DIP PIN DIP V-35UV C-35, 5C-38 5V-35, 5V V-35UV 5C-35 5C-38 5V-35 5V SL or 38 rray Elements Element rray Pin Element Pin Element Number Number Number Number 1 C 21 C C 40 C 38 Element rray Pin Element Pin Element Number Number Number Number 1 C 21 C Pin 1 = Cathode Pin 6, 13 = node 66

8 ll units in inches. Pinouts are bottom view. PD-300 PD-500 PD-300L PD-500L PD-900 PD-1500 PD (W) min. Plastic 71 TO-8 72 TO MX. CD OSD QD NOM MIN NOM MIN CTHODE & CSE NODE CTHODE & CSE Q3 Q Q NODE CTHODE 0.10 TYP. QUDRNT NODE 1 74 Special 75 TO-5 76 Plastic Molded OSD100-0 OSD100-5T DLS-2S OS-P WINDOW NOM OPTICL C L RED DOT INDICTES CTHODE LED MIN MIN (4 PLCS) C C Pin Circle Dia.= Bottom View