PHOTODIODE Si photodiode with preamp S9295 series Large area photodiode integrated with op amp and TE-cooler S9295 series is a thermoelectrically cooled Si photodiode with preamp developed for low-light-level detection. A large area photodiode, op amp, TE-cooler and feedback resistor (10 GΩ) are integrated into a single package. A thermistor is also included in the same package for temperature control so that the photodiode and I-V conversion circuit can be cooled for stable operation. S9295 series also features low noise and low NEP, and is especially suitable for NOx detection. The active area of the photodiode is internally connected to the GND terminal making it highly resistant to EMC noise. Features Applications l Large active area: 10 × 10 mm l NOx detection l UV to NIR Si photodiode optimized for precision photometry l Low-light-level measurement, etc. l Compact hermetic package with sapphire window l High precision FET input operational amplifier l High gain: Rf=10 GΩ l Low noise and NEP l High cooling efficiency S9295 : ∆T=50 ˚C S9295-01: ∆T=30 ˚C l High stability with thermistor l Highly resistant to EMC noise S9295 series may be damaged by Electro Static Discharge, etc. Please see Precautions for use in the last page. ■ Absolute maximum ratings Parameter Supply voltage (preamp) Operating temperature Storage temperature TE-cooler allowable voltage *1 TE-cooler allowable current Thermistor power dissipation *1: Ripple Max.: 10 % *2: S9295-01: 3.7 V ■ Recommended operating conditions Symbol Value Vcc ±20 V Topr -30 to +60 °C Tstg -40 to +80 °C Vte 5 V *2 Ite 1A Pth 0.2 mW Parameter Symbol Supply voltage (preamp) Vcc TE-cooler current Ite Thermistor power dissipation Pth Load resistance RL Value ±5 to ±15 V 0.8 A Max. 0.03 mW Max. 100 kΩ Min. ■ Electrical and optical characteristics (Typ. Vcc=±15 V, RL=1 MΩ) Parameter Symbol Spectral response range Peak sensitivity wavelength Feedback resistance (built-in) *3 λ λp Rf Photo sensitivity S Condition S9295 T= -25 °C S9295-01 T= -5 °C 190 to 1100 960 10 λ=200 nm λ=λp D ark state, f=10 Hz λ=λp, f=10 Hz Dark state -3 dB 0.9 5.1 20 4 ±2 190 Output noise voltage Vn Noise equivalent power NEP Output offset voltage Vos Cut-off frequency fc Output voltage swing Vo Supply current Icc Dark state Thermistor resistance Rth 86 *3: Custom devices are available with different Rf values and/or internal Cf, etc. Unit nm nm GΩ 0.9 5.1 25 5 ±2 180 13 0.3 30 V/nW µVrms/Hz1/2 fW/Hz1/2 mV Hz V mA kΩ 1 Si photodiode with preamp ■ Spectral response ■ Frequency response (Typ. Vcc=±15 V) 6 (Typ. Vcc=±15 V) 10 S9295 (T= -25 ˚C) RELATIVE OUTPUT (dB) 5 PHOTO SENSITIVITY (V/nW) S9295 series 4 3 S9295 (T= -25 ˚C) S9295-01 (T= -5 ˚C) 2 0 -10 -20 S9295-01 (T= -5 ˚C) -30 10 100 1 0 200 400 600 800 1000 WAVELENGTH (nm) 1000 10000 FREQUENCY (Hz) KSPDB0228EA KSPDB0229EA ■ NEP vs. frequency (Typ. Vcc=±15 V) 3 NEP (fW/Hz1/2) S9295-01 (T= -5 ˚C) 10 2 S9295 (T= -25 ˚C) 101 10 (Typ. Vcc=±15 V) -3 10 OUTPUT NOISE VOLTAGE (Vrms/Hz1/2) 10 ■ Output noise voltage vs. frequency 0 S9295-01 (T= -5 ˚C) -4 10 S9295 (T= -25 ˚C) 10 -5 -6 10 -7 1 10 100 1000 10 10000 1 10 FREQUENCY (Hz) 100 1000 10000 FREQUENCY (Hz) KSPDB0230EB KSPDB0231EA ■ Element temperature vs. TE-cooler current 6 Vte vs. Ite 4 10 T vs. Ite 0 3 -10 2 -20 1 -30 0 0.2 0.4 0.6 0.8 0 1.0 TE-COOLER CURRENT Ite (A) 6 5 20 T vs. Ite 10 4 Vte vs. Ite 0 3 -10 2 -20 1 -30 0 0.2 0.4 0.6 0.8 0 1.0 TE-COOLER CURRENT Ite (A) KSPDB0151EB 2 ELEMENT TEMPERATURE T (˚C) 5 20 (Typ. Ta=25 ˚C) 30 TE-COOLER VOLTAGE Vte (V) (Typ. Ta=25 ˚C) 30 ELEMENT TEMPERATURE T (˚C) S9295-01 TE-COOLER VOLTAGE Vte (V) S9295 KSPDB0172EB Si photodiode with preamp ■ External connection ■ Thermistor resistance vs. temperature PACKAGE Rf=10 GΩ THERMISTOR OUT PHOTODIODE + GND CASE (Typ.) 120 Vcc + Vcc- THERMISTOR RESISTANCE (kΩ) TE-COOLER + TE-COOLER S9295: TWO-STAGE S9295-01: ONE-STAGE S9295 series 100 80 60 40 20 0 -30 NC -20 -10 0 10 20 30 KSPDC0047EA TEMPERATURE (˚C) KSPDB0152EA ■ Dimensional outlines (unit: mm) S9295 34.0 ± 0.2 24.3 ± 0.2 24.3 ± 0.2 WINDOW 16.0 ± 0.2 WINDOW 16.0 ± 0.2 ACTIVE AREA 4 (2 ×) 4 KSPDA0071EB 7.0 ± 0.3 (4.7) 7.6 ± 0.3 17.8 ± 0.3 INDEX MARK INDEX MARK 0.9 ± 0.2 PHOTOSENSITIVE SURFACE 7.6 ± 0.3 SAPPHIRE WINDOW (t=0.5) 19 ± 1 6.0 PHOTOSENSITIVE SURFACE 0.9 ± 0.2 SAPPHIRE WINDOW (t=0.5) 19 ± 1 13.5 ± 0.3 27.4 ± 0.3 27.4 ± 0.3 (2 ×) 42.0 ± 0.4 34.0 ± 0.2 17.8 ± 0.3 ACTIVE AREA S9295-01 42.0 ± 0.4 KSPDA0079EA A tantalum or ceramic capacitor of 0.1 to 10 µF must be connected to the supply voltage leads (pins ➃ and ➉) as a bypass capacitor used to prevent the device from oscillation. 3 Si photodiode with preamp S9295 series Precautions for use ■ ESD S9295 series may be damaged or their performance may deteriorate by such factors as electro static discharge from the human body, surge voltage from measurement equipment, leakage voltages from soldering irons and packing materials. As a countermeasure against electro static discharge, the device, operator, work place and measuring jigs must all be set at the same potential. The following precautions must be observed during use: , •To protect the device from electro static discharge which accumulate on the operator or the operator s clothes, use a wrist , strap or similar tools to ground the operator s body via a high impedance resistor (1 MΩ). •A semiconductive sheet (1 MΩ to 10 MΩ) should be laid on both the work table and the floor in the work area. •When soldering, use an electrically grounded soldering iron with an isolation resistance of more than 10 MΩ. •For containers and packing, use of a conductive material or aluminum foil is effective. When using an antistatic material, use one with a resistance of 0.1 MΩ/cm2 to 1 GΩ/cm2. ■ Strength Thermoelectrically-cooler devices may be damaged if subjected to shock, for example drop impact. Take sufficient care when handling these devices. ■ Lead forming When forming the leads, take care not to apply excessive force to the lead sealing glass. Excessive force may impair the hermetic sealing, possibly degrading the cooling capacity. To form the leads, hold the roots of the leads securely with a pair of pliers and bend them. ■ Heatsink Use a heatsink with thermal resistance less than 1.3 °C/W. Apply thermal grease between the heatsink and detector package, and then fasten them with the screws. Be careful not to give any excessive force or mechanical stress to the detector package at this point. ■ Wiring • Be careful not to misconnect the plus and minus leads of the thermoelectric cooler or preamplifier. Supplying a voltage or current while these connections are reversed may damage the device. • The feedback resistor integrated into S9295 series is high so it is susceptible to external noise. Always ground the case terminal when using S9295. Information furnished by HAMAMATSU is believed to be reliable. However, no responsibility is assumed for possible inaccuracies or omissions. Specifications are subject to change without notice. No patent rights are granted to any of the circuits described herein. ©2004 Hamamatsu Photonics K.K. HAMAMATSU PHOTONICS K.K., Solid State Division 1126-1 Ichino-cho, Higashi-ku, Hamamatsu City, 435-8558 Japan, Telephone: (81) 53-434-3311, Fax: (81) 53-434-5184, http://www.hamamatsu.com U.S.A.: Hamamatsu Corporation: 360 Foothill Road, P.O.Box 6910, Bridgewater, N.J. 08807-0910, U.S.A., Telephone: (1) 908-231-0960, Fax: (1) 908-231-1218 Germany: Hamamatsu Photonics Deutschland GmbH: Arzbergerstr. 10, D-82211 Herrsching am Ammersee, Germany, Telephone: (49) 08152-3750, Fax: (49) 08152-2658 France: Hamamatsu Photonics France S.A.R.L.: 19, Rue du Saule Trapu, Parc du Moulin de Massy, 91882 Massy Cedex, France, Telephone: 33-(1) 69 53 71 00, Fax: 33-(1) 69 53 71 10 United Kingdom: Hamamatsu Photonics UK Limited: 2 Howard Court, 10 Tewin Road, Welwyn Garden City, Hertfordshire AL7 1BW, United Kingdom, Telephone: (44) 1707-294888, Fax: (44) 1707-325777 North Europe: Hamamatsu Photonics Norden AB: Smidesvägen 12, SE-171 41 Solna, Sweden, Telephone: (46) 8-509-031-00, Fax: (46) 8-509-031-01 Italy: Hamamatsu Photonics Italia S.R.L.: Strada della Moia, 1/E, 20020 Arese, (Milano), Italy, Telephone: (39) 02-935-81-733, Fax: (39) 02-935-81-741 4 Cat. No. KSPD1064E01 Dec. 2004 DN