G8338/G8341/G7871/G8795 series are high-speed receivers specifically developed for 1.3/1.55 µm band optical fiber communications.
These devices incorporate a high-speed, high-sensitivity InGaAs PIN photodiode integrated with a high-speed preamp, allowing easy
connection to a latter-stage circuit. Lens window types are also available for efficient and easy coupling to an optical fiber.
Features
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Wide dynamic range
G8338 series (156 Mbps) : -37 to -5 dBm
G8341 series (622 Mbps) : -32 to -5 dBm
G7871 series (1.25 Gbps) : -25 to -1 dBm
G8795 series (2.5 Gbps) : -22 to +1 dBm
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Integrated with trans-impedance amplifier
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Active area
G8338/G7871 series:
f
0.08 mm
G8341/G8795 series:
f
0.04 mm
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Supply voltage
G8338/G8341 series: 3.3 V
G7871/G8795 series: 3.3 V, 5 V
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Differential output
Applications
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Optical fiber communications
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Fiber channel
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Gigabit Ethernet
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HDTV
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SDH
PHOTODIODE
InGaAs PIN photodiode with preamp
TO-18 package, 1.3/1.55
m
m, 156, 622 Mbps/1.25, 2.5 Gbps
G8338/G8341/G7871/G8795 series
■ Absolute maximum ratings (Ta=25 °C)
Parameter Symbol G8338 G8338-02 G8341 G8341-02 G7871 G7871-02 G8795 G8795-02 Unit
Supply voltage Vcc -0.3, +3.8 -0.3, +3.8 -0.3, +5.5 -0.5, +6 V
Operating temperature Topr -40 to +85 °C
Storage temperature Tstg -40 to +85 °C
■ Specifications (Typ. Ta=25 °C, Vee=0 V, capacitive coupling, λ=1.31 µm, unless otherwise noted)
G8338 G8338-02 G8341 G8341-02 G7871 G7871-02 G8795 G8795-02
Parameter Symbol Condition Vcc=3.3 V
R
L=500 Ω *1
Vcc=3.3 V
R
L=500 Ω *1
Vcc=3.3/5 V
RL=50 ΩVcc=3.3/5 V
RL=50 ΩUnit
Dimensional outline - ➀➁➀➁➂➃➀➁-
Window -flat lens flat lens flat lens flat lens -
Active area A φ0.08 φ0.04 φ0.08 φ0.04 mm
Photo sensitivity S *2, *327 17 2.8 1.2 V/mW
Supply current Icc dark state, RL=∞25 30 35 35 mA
Output bias voltage Vo dark state, RL=∞1.5 1.65 Vcc - 1.7 Vcc - 0.25 V
Rise time tr *3 20 to 80 % 2000 500 250 150 ps
Data rate B156 M 622 M 1.25 G 2.5 G bps
*1: G8338/G8341 series cannot be operated with RL=50 Ω, so they should be used with a load resistance larger than 500
Ω.
*2: Single ended (Vout+) measurement.
*3: G8338/G8341 series: Pin= -30 dBm
G7871 series: Pin= -22 dBm
G8795 series: Pin= -17 dBm
1
InGaAs PIN photodiode with preamp G8338/G8341/G7871/G8795 series
13 0.65 ± 0.15
3.8 ± 0.2
0.45
LEAD
4.65 ± 0.1
5.4 ± 0.2
2.54 ± 0.25
1.5 LENS
Vout -
Vcc
Vout +
Vee (CASE)
Vout -
Vcc
Vout +
Vee (CASE)
13
1.6
3.65 ± 0.2
0.45
LEAD
4.7 ± 0.15
5.4 ± 0.2
2.54 ± 0.25
PHOTOSENSITIVE
SURFACE
WINDOW
3.0 ± 0.1
The borosilicate glass window may
extend a maximum of 0.1 mm beyond
the upper surface of the cap.
Vout +
Vcc
Vout -
Vee (CASE)
13
1.6
3.65 ± 0.2
0.45
LEAD
4.7 ± 0.15
5.4 ± 0.2
2.54 ± 0.25
PHOTOSENSITIVE
SURFACE
WINDOW
3.0 ± 0.1
The borosilicate glass window may
extend a maximum of 0.1 mm beyond
the upper surface of the cap.
■ Dimensional outlines (unit: mm)
KIRDA0104EA
➀ G8338, G8341, G8795
KIRDA0098EA
➁ G8338-02, G8341-02, G8795-02
13 0.65 ± 0.15
3.8 ± 0.2
0.45
LEAD
4.65 ± 0.1
5.4 ± 0.2
2.54 ± 0.25
1.5 LENS
Vout +
Vcc
Vout -
Vee (CASE)
KIRDA0105EA
➂ G7871
KIRDA0067EA
➃ G7871-02
HAMAMATSU PHOTONICS K.K., Solid State Division
1126-1 Ichino-cho, Hamamatsu City, 435-8558 Japan, Telephone: (81) 053-434-3311, Fax: (81) 053-434-5184, 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.: 8, 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
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. ©2001 Hamamatsu Photonics K.K.
Cat. No. KIRD1031E02
Dec. 2001 DN
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