2650A/B Broadband Photodiode
Data Sheet, Rev. 1
April 2001
Features
s
Low capacitance,
0.6 pF
s
1 GHz flat response, 0.5 dB
s
High responsivity:
--
0.85 at 1310 nm
--
0.95 at 1550 nm
Applications
s
Forward-path and return-path broadband video
transport
s
EDFA/network monitors
Description
The 2650A/B provides the proven high performance
of our photodiode technology in a very practical,
cost-effective package. The 2650-series features
high linearity and low capacitance over a
1 GHz bandwidth. These broadband photodiodes are
housed in a small, environmentally rugged coaxial
package.
The 2650A/B broadband photodetector is designed
to provide the performance and flexibility needed to
meet the expanding applications of two-way commu-
nications networks. This photodiode is used today in
forward- and return-path applications, including AM-
VSB CATV, QAM 64/256, PON, FTTC, and FTTH
receivers.
2
Data Sheet, Rev.1
2650A/B Broadband Photodiode
April 2001
Agere Systems Inc.
Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are abso-
lute stress ratings only. Functional operation of the device is not implied at these or any other conditions in excess
of those given in the operational sections of the data sheet. Exposure to absolute maximum ratings for extended
periods can adversely affect device reliability.
Characteristics
1. Two laser test at 1310 nm. Each laser has 40% modulation index. Total received power is 0 dBm. Distortion products measured at 80 MHz,
450 MHz, 600 MHz, 850 MHz, and 1000 MHz.
Parameter
Symbol
Min
Max
Unit
Operating Temperature Range
T
OP
40
85
C
Storage Temperature Range
Tstg
40
85
C
Input Power Saturation
P
IN
--
10
mW
Reverse Voltage
V
R
--
30
V
Forward Current
I
F
--
10
mA
Power Dissipation
P
DISS
--
<100
mW
Table 1. Electrical/Optical Characteristics
Parameter
Symbol
Min
Typ
Max
Unit
Optical Wavelength Range
1100
--
1600
nm
Responsivity
--
--
--
>0.85 at 1310 nm,
>0.95 at 1550 nm
--
--
mA/mW
mA/mW
Frequency Range
F
1
--
1000
MHz
Frequency Response
--
--
0.5
--
dB
Distortion Products:
1
Composite Second Order
Composite Triple Beat
CSO
CTB
--
--
75
85
--
--
dBc
dBc
Back Reflection
RL
--
40
--
dB
Dark Current
I
D
--
5 at 25
C
--
nA
Capacitance --
--
0.6 --
pF
Bandwidth
BW
--
1.0
--
GHz
3
Data Sheet, Rev.1
April 2001
2650A/B Broadband Photodiode
Agere Systems Inc.
Outline Diagram
2650A/B Photodiode with Electrical Schematic
(Dimensions are in inches and (millimeters.))
1
2
3
4
BOTTOM VIEW
0.218
(5.50)
0.200
(5.10)
0.160
(4.00)
0.098
(2.50)
0.287
(7.30)
0.165
(4.20)
0.472
(12.0)
0.630
(16.0)
0.760
(20.0)
ELECTRICAL SCHEMATIC
1
2
3
4
AA
4
6
5.5 0.2
0.02
3
1.5
8
2- 1.5 x 45
18
13 0.05
B
B
0.05
8
4
2- 0.5 x 45
2
2
4
4
1-1261 (F)
2650A/B Photodiode Bracket
(Dimensions are in millimeters.)
1-1185 (F)
For additional information, contact your Agere Systems Account Manager or the following:
INTERNET:
http://www.agere.com
E-MAIL:
docmaster@micro.lucent.com
N. AMERICA:
Agere Systems Inc., 555 Union Boulevard, Room 30L-15P-BA, Allentown, PA 18109-3286
1-800-372-2447, FAX 610-712-4106 (In CANADA: 1-800-553-2448, FAX 610-712-4106)
ASIA PACIFIC: Agere Systems Singapore Pte. Ltd., 77 Science Park Drive, #03-18 Cintech III, Singapore 118256
Tel. (65) 778 8833, FAX (65) 777 7495
CHINA:
Agere Systems (Shanghai) Co., Ltd., 33/F Jin Mao Tower, 88 Century Boulevard Pudong, Shanghai 200121 PRC
Tel. (86) 21 50471212, FAX (86) 21 50472266
JAPAN:
Agere Systems Japan Ltd., 7-18, Higashi-Gotanda 2-chome, Shinagawa-ku, Tokyo 141, Japan
Tel. (81) 3 5421 1600, FAX (81) 3 5421 1700
EUROPE:
Data Requests: DATALINE: Tel. (44) 7000 582 368, FAX (44) 1189 328 148
Technical Inquiries: OPTOELECTRONICS MARKETING: (44) 1344 865 900 (Ascot UK))
Agere Systems Inc. reserves the right to make changes to the product(s) or information contained herein without notice. No liability is assumed as a result of their use or application.
Copyright 2001 Agere Systems Inc.
All Rights Reserved
April 2001
DS01-128OPTO-1 (Replaces DS01-128OPTO)
Data Sheet, Rev.1
2650A/B Broadband Photodiode
April 2001
Ordering Information
1. Other options available. For additional ordering information, please contact an account manager at OPTO West, Agere Systems Inc.,
1-800-362-3891 (for sales staff, please press option 2).
2. Please specify fiber length and connector type when ordering.
Table 2. Ordering Information
1
Device Code
Description
Fiber
2
Connector
2
Comcode
2650A
Broadband Photodiode without
Mounting Bracket
Single-mode,
900
m
--
108866500
2650B
Broadband Photodiode with
Mounting Bracket
Single-mode,
900
m
--
108866567
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