InGaAs PIN photodiodes G8605 series Thermoelectrically cooled NIR (near infrared) detector with low noise and high-speed response InGaAs PIN photodiodes have small terminal capacitance for high-speed response and also feature high shunt resistance and very low noise. The G8605 series of InGaAs PIN photodiodes are thermoelectrically cooled types that decrease the dark current to achieve high D∗. One-stage (-10 °C) and two-stage (-20 °C) thermoelectrically cooled types are provided. Features Applications High-speed response Optical power meter Low noise Water content analyzer Various active area sizes available from φ1 to φ5 mm Laser diode life test Accessories (Optional) Preamp for InGaAs PIN photodiode C4159-03 Heatsink for one-stage TE-cooled type A3179 Heatsink for two-stage TE-cooled type A3179-01 Temperature controller for TE-cooled type C1103-04 Specifications / Absolute maximum ratings Type No. G8605-11 G8605-12 G8605-13 G8605-15 G8605-21 G8605-22 G8605-23 G8605-25 Dimensional outline/ Window material * Package Cooling One-stage TE-cooled /K TO-8 Two-stage TE-cooled /K Active area (mm) φ1 φ2 φ3 φ5 φ1 φ2 φ3 φ5 Thermistor power dissipation (mW) 0.2 Absolute maximum ratings TE-cooler Operating Reverse voltage temperature allowable VR Max. current Topr (A) (V) (°C) 5 5 1.5 5 2 -40 to +70 5 5 1.0 5 2 Storage temperature Tstg (°C) -55 to +85 * Window material K: borosilicate glass with anti-reflective coating (1.55 μm peak) Electrical and optical characteristics (Typ. unless otherwise noted) Measurement condition Type No. G8605-11 G8605-12 G8605-13 G8605-15 G8605-21 G8605-22 G8605-23 G8605-25 Spectral Peak response sensitivity wavelength range Element λ λp temperature (°C) (μm) -10 0.9 to 1.67 (μm) 1.55 -20 0.9 to 1.65 Photo sensitivity S 1.3 μm λ=λp (A/W) (A/W) 0.9 0.95 Dark current ID VR=1 V Typ. (nA) 0.07 0.3 1 2.5 0.03 0.15 0.5 1.2 Max. (nA) 0.35 1.5 5 12.5 0.15 0.75 2.5 6 Cut-off frequency fc VR=1 V RL=50 Ω (MHz) 18 4 2 0.6 18 4 2 0.6 www.hamamatsu.com Terminal Shunt capacitance resistance Ct Rsh VR=1 V VR=10 mV f=1 MHz (pF) 150 550 1000 3500 150 550 1000 3500 (MΩ) 1500 300 100 30 3000 600 200 60 D∗ λ=λp NEP λ=λp (cm·Hz1/2/W) (W/Hz1/2) 5 × 10-15 1 × 10-14 2 × 1013 2 × 10-14 3 × 10-14 3 × 10-15 7 × 10-15 3 × 1013 1 × 10-14 2 × 10-14 1 InGaAs PIN photodiodes G8605 series Spectral response Photo sensitivity temperature characteristic (Typ.) 1 Temperature coefficient (%/°C) Photo sensitivity (A/W) T=25 °C T=-10 °C T=-20 °C 0.5 0.6 0.8 1.0 1.2 1.4 1.6 (Typ. Ta=25 °C) 2 1 0 -1 0.8 1.8 1.0 1.2 Wavelength (µm) 1.4 1.6 1.8 Wavelength (µm) KIRDB0184EA KIRDB0042EA Spectral response shifts towards the short wavelength side when cooled. One-stage TE-cooled type: λc=1.67 mm Two-stage TE-cooled type: λc=1.65 mm Photo sensitivity linearity Dark current vs. reverse voltage (Typ. Ta=25 °C, λ=1.3 µm, RL=2 Ω, VR=0 V) 102 G8605-11/-21 98 100 nA G8605-13 G8605-12/-22 Dark current Relative sensitivity (%) 100 96 94 (Typ.) 1 µA G8605-25 10 nA G8605-23 G8605-15 G8605-12 1 nA G8605-22 G8605-13/-23 G8605-15/-25 92 100 pA G8605-11 G8605-21 90 0 2 4 6 8 10 12 14 16 10 pA 0.01 0.1 1 10 100 Reverse voltage (V) Incident light level (mW) KIRDB0241EA KIRDB0242EB Applying a reverse voltage increases dark current, but improves frequency characteristics and output linearity. 2 InGaAs PIN photodiodes G8605 series Terminal capacitance vs. reverse voltage Shunt resistance vs. element temperature (Typ. Ta=25 °C, f=1 MHz) 10 nF G8605-13/-23 1 GΩ 1 nF G8605-11/-21 Shunt resistance Terminal capacitance (Typ. VR=10 mV) 10 GΩ G8605-15/-25 G8605-12/-22 100 pF G8605-11/-21 100 MΩ G8605-12/-22 G8605-13/-23 10 MΩ G8605-15/-25 10 pF 1 MΩ 1 pF 0.01 0.1 1 10 100 kΩ -40 100 -20 Reverse voltage (V) 0 40 20 60 80 Element temperature (°C) KIRDB0243EB KIRDB0244EB In applications requiring high-speed response, the lead length should be as short as possible to minimize the terminal capacitance. Thermistor temperature characteristic (Typ.) 105 104 103 -40 -30 -20 -10 0 10 20 30 (Typ. Ta=25 °C, Thermal resistance of heatsink=3 °C/W) 40 Element temperature (°C) 106 Resistance (Ω) Cooling characteristics of TE-cooler 20 One-stage TE-cooled type 0 -20 Two-stage TE-cooled type -40 -60 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 Current (A) Element temperature (°C) KIRDB0116EA KIRDB0231EA 3 InGaAs PIN photodiodes G8605 series Current vs. voltage (TE-cooler) (Typ. Ta=25 °C, Thermal resistance of heatsink=3 °C/W) 1.6 1.4 One-stage TE-cooled type Current (A) 1.2 1.0 0.8 0.6 Two-stage TE-cooled type 0.4 0.2 0 0 0.2 0.4 0.6 0.8 1.0 1.2 Voltage (V) KIRDB0115EB Dimensional outlines (unit: mm) 14 ± 0.2 12 Min. Photosensitive surface 0.45 lead Photosensitive surface 0.45 lead 10.2 ± 0.2 5.1 ± 0.2 5.1 ± 0.2 10.2 ± 0.2 5.1 ± 0.2 5.1 ± 0.2 Window 10 ± 0.2 12 Min. Window 10 ± 0.2 6.4 ± 0.2 15.3 ± 0.2 14 ± 0.2 4.4 ± 0.2 15.3 ± 0.2 10 ± 0.2 G8605-21/-22/-23/-25 6.7 ± 0.2 G8605-11/-12/-13/-15 5.1 ± 0.2 5.1 ± 0.2 Detector (anode) Detector (cathode) TE-cooler (-) TE-cooler (+) Thermistor KIRDA0152EB Detector (anode) Detector (cathode) TE-cooler (-) TE-cooler (+) Thermistor KIRDA0153EB 4 InGaAs PIN photodiodes G8605 series Related information www.hamamatsu.com/sp/ssd/doc_en.html Precautions ∙ Notice ∙ Metal, ceramic, Plastic products/Precautions Technical information ∙ infrared detector/technical information Information described in this material is current as of July, 2013. Product specifications are subject to change without prior notice due to improvements or other reasons. This document has been carefully prepared and the information contained is believed to be accurate. In rare cases, however, there may be inaccuracies such as text errors. Before using these products, always contact us for the delivery specification sheet to check the latest specifications. Type numbers of products listed in the delivery specification sheets or supplied as samples may have a suffix "(X)" which means preliminary specifications or a suffix "(Z)" which means developmental specifications. The product warranty is valid for one year after delivery and is limited to product repair or replacement for defects discovered and reported to us within that one year period. However, even if within the warranty period we accept absolutely no liability for any loss caused by natural disasters or improper product use. 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No. KIRD1049E06 Jul. 2013 DN 5