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PHOTODIODE
InGaAs APD
G8931-20
Large active area: 0.2 mm, high-speed response: 0.9 GHz
G8931-20 is a large area InGaAs APD designed for distance measurement, spatial light transmission and low-light-level detection, etc. Despite its large active area of 0.2 mm, G8931-20 provides high-speed response (typical cut-off frequency 0.9 GHz at M=10).
Features
Applications
l Active area: 0.2 mm l Low voltage operation l Low capacitance l High sensitivity l Low dark current
s General ratings
Param eter Active area Sym bol -
l Distance measurement l Spatial light transmission l OTDR l Low-light-level detection
Value 0.2 Unit mm
s Absolute maximum ratings
Param eter Forward current Reverse current Operating tem perature Storage temperature Sym bol IF IR Topr Tstg Value 2 500 -40 to +85 -55 to +125 Unit mA A C C
s Electrical and optical characteristics (Ta=25 C)
Param eter Spectral response range Peak sensitivity wavelength Photo sensitivity Breakdown voltage Tem perature coefficient of VBR Dark current Cut-off frequency Term inal capacitance Sym bol p S VBR ID fc Ct Condition Min. 0.8 40 0.6 Typ. 0.9 to 1.7 1.55 0.9 0.11 150 0.9 1.5 Max. 60 0.16 200 2 Unit m m A/W V V/C nA GHz pF
=1.55 m , M=1 ID=100 A -40 to +85 C VR=VBR x 0.9 M=10 VR=VBR x 0.9 f=1 MHz
s Spectral response
1.0 (Typ. Ta=25 C, M=1)
s Dark current vs. reverse voltage
1 mA (Typ. Ta=25 C)
DARK CURRENT, PHOTOCURRENT
100 A PHOTOCURRENT 10 A 1 A 100 nA 10 nA 1 nA 100 pA 10 pA 1 pA 0 10 20 30 40 50 DARK CURRENT
PHOTO SENSITIVITY (A/W)
0.8
0.6
0.4
0.2
0 0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
WAVELENGTH (m)
KAPDB0120EA
REVERSE VOLTAGE (V)
KAPDB0121EA
1
InGaAs APD
s Terminal capacitance vs. reverse voltage
12 (Typ. Ta=25 C)
G8931-20
s Dimensional outline (unit: mm)
5.4 0.2 4.7 0.1
2.7 0.2 3.7 0.2 13 MIN.
KAPDA0034EA
WINDOW 3.0 0.1
TERMINAL CAPACITANCE (pF)
10
8
PHOTOSENSITIVE SURFACE
6
4
0.45 LEAD 2.5 0.2
2
0 0 10 20 30 40 50
REVERSE VOLTAGE (V)
KAPDB0122EA
CASE
s Peripheral circuit example of APD
BIAS SUPPLY VOLTAGE (FOR TEMPERATURE COMPENSATION) 1 M MIN. CURRENT LIMITTING RESISTANCE 0.1 F MIN. (AS CLOSE TO APD AS POSSIBLE)
APD
EXCESSIVE VOLTAGE PROTECTIVE CIRCUIT
+ READOUT CIRCUIT HIGH-SPEED OP AMP LH0032, etc.
KAPDC0005EB
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. (c)2007 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, 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: Smidesvagen 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
2
Cat. No. KAPD1019E02 Jul. 2007 DN

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