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

–40

85

°C

Storage Temperature Range

Tstg

–40

85

°C

Input Power Saturation

—10

mW

Reverse Voltage

—30

V

Forward Current

—10

mA

Power Dissipation

—<100

mW

Table 1. Electrical/Optical Characteristics

Parameter

Symbol

Min

Typ

Max

Unit

Optical Wavelength Range

λ

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

Composite Second Order

Composite Triple Beat

CSO

CTB

—

—

≤–75

≤–85

—

—

dBc

dBc

Back Reflection

RL

—

≤–40

—

dB

Dark Current

—

≤5 at 25 °C—

nA

Capacitance

—

—

≤0.6

—

pF

Bandwidth

BW

—

1.0

—

GHz