2650A/B Broadband Photodiode
Data Sheet, Rev. 1
April 2001
Features
■Low capacitance, ≤0.6 pF
■1 GHz fla t response, ±0.5 dB
■High responsivity:
— ≥0.85 at 1310 nm
— ≥0.95 at 1550 nm
Applications
■Forward-path and return-path broadband video
transport
■EDFA/networ k mon ito rs
Description
The 2650A/B provides the proven high performance
of our photodiode technology in a v ery practical,
cost-effective package. The 2650-series features
high linearity and low capacitance o ver 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 flexibili ty nee ded 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 TOP –40 85 °C
Storage Temperature Range Tstg –40 85 °C
Input Power Saturation PIN —10mW
Reverse Voltage VR—30V
Forward Current IF—10mA
Power Dissipation PDISS —<100mW
Table 1. Electrical/Optical Characteristics
Parameter Symbol Min Typ Max Unit
Optical Wavelength Range λ1100 — 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 ID—≤5 at 25 °C—nA
Capacitance — — ≤0.6 — pF
Bandwidth BW — 1.0 — GHz
3
Data Sheet, Rev.1
April 2001 2650A/B Br oadband Photodiode
Agere Systems Inc.
Outline Diagram
2650A/B Photodiode with Electrical Schematic (Dimensions are in inches and (millimeters.))
12
34
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)
ELECTR ICAL SCHEMATI C
12
34
AA
4
6
∅ 5.5 –0.2
–0.02
3
1.5
8
2- 1.5 x 45°
18
13 ± 0.05
B
B0.05
8
4
2- 0.5 x 45°
22
44
1-1261 (F)
2650A/B Photodiode Bracket (Dimens i ons are in milli me ter s.) 1-1185 (F)
For additional informatio n, co nta ct you r Agere Systems Account Manager o r the foll ow ing:
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 CANA DA: 1-800-553-2448, FAX 610-712-4106)
ASIA PACIFIC: Agere Systems Singa pore Pte. Ltd., 77 Science Par k Dr ive, #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 Centur y 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) 11 89 328 148
Te chnic al Inquiri es : OPTOELECTRONICS MARKETING: (44) 134 4 865 900 (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 Information1
Device Code Descript ion Fiber2Connector2Comcode
2650A Broadb and Pho tod iod e witho ut
Mounting Bracket S in gle- mod e,
900 µm— 108866500
2650B Broadband Photodiode with
Mounting Bracket S in gle- mod e,
900 µm— 108866567
