SD138-11-31-211

Silicon PIN Photodiode Sandwich Detector SD 138-11-31-211 CHIP DIMENSIONS INCH [mm] FEATURES Large Active Area Low Noise High Shunt Resistance Hermetically Sealed High Saturation SYMBOL DESCRIPTION The SD138-11-31-211 device features two silicon PIN photodiodes vertically integrated a hermetic TO-5 package. The top photodiode absorbs a portion of the light and the remaining light is transmitted to the bottom photodiode. The current ratio of the two photodiodes is used to remotely determine and monitor the color temperature of an object. The SD138-11-31-211 can find application in dual wavelength power meters and remote color temperature sensing. PARAMETER VBR Reverse Voltage TSTG Storage Temperature TO Operating Temperature TS Soldering Temperature* * 1/16 inch from case for 3 seconds max. APPLICATIONS MIN MAX UNITS 25 V -55 +150 -40 +125 °C °C +240 °C • Dual Wavelength Power Meters • Remote Color Temperature Sensing Typical Spectral Response 0.7 0.6 Responsivity (A/W) • • • • • TO-5 PACKAGE 0.5 0.4 0.3 0.2 0.1 0 200 400 600 800 Wavelength (nm) 1000 1200 ELECTRO-OPTICAL CHARACTERISTICS OF TOP AND BOTTOM PHOTODIODES @ + 23°C AND VOLTS BIAS UNLESS OTHERWISE SPECIFIED PARAMETER Active Area Diameter (Top) Active Area Diameter (Bottom) CONDITIONS MIN Spectral Range of (Top) Spectral Range of (Bottom) Shunt Resistance Responsivity Reak NEP (Bottom) Peak NEP (Top) Peak NEP (Bottom) Capacitance Operating Temperature Storage Temperature Bias: 10mV Wavelength = 950 nm Wavelength = 1050 Wavelength = 950 Wavelength = 1050 50 0.50 0.135 -55 -55 TYP 3.5 3.1 300 to 1100 950 to 1100 200 0.60 0.155 12 45 290 MAX UNITS mm mm nm nm 25 100 305 +100 +100 MW A/W A/W fw/√Hz fw/√Hz pF ºC ºC Information in this technical datasheet is believed to be correct and reliable. However, no responsibility is assumed for possible inaccuracies or omission. Specifications are subject to change without notice. Advanced Photonix Inc. 1240 Avenida Acaso, Camarillo CA 93012 • Phone (805) 987-0146 • Fax (805) 484-9935 • www.advancedphotonix.com REV 6/11/09 2