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California Micro Devices Corp |
NEC's φ50µm
InGaAs PIN-PD
IN COAXIAL PACKAGE
FOR 2.5 Gbp/s APPLICATIONS
NR7500 SERIES
FEATURES
• SMALL DARK CURRENT:
ID = 0.1 nA
• HIGH SPEED RESPONSE:
fc = 2.5 GHz MIN
• HIGH SENSITIVITY:
S = 0.89 A/W at λ = 1310 nm
S = 0.94 A/W at λ = 1550 nm
• LOW OPERATING VOLTAGE:
VR = 5 V
• COAXIAL MODULE WITH SINGLE MODE FIBER (SMF)
OR GI-50 FIBER
• WITH SC CONNECTOR: Standard, FC connector: option
(Refer to Ordering Information)
DESCRIPTION
NEC's NR7500 Series is an InGaAs PIN photo diode (PIN-PD)
coaxial module with optical fiber pigtail. This module is de-
signed for long wavelength 2.5 Gb/s optical fiber communica-
tion systems and is ideal as a reciever for Synchronous Digital
Hierarchy (SDH) system, STM-16, ITU-T recommendations.
ELECTRO-OPTICAL CHARACTERISTICS (TC = 40° C to +85º C, unless otherwise specified)
PART NUMBER
NR7500 Series
SYMBOLS
ID
Ct
S
fc
ORL
PARAMETERS AND CONDITIONS
Dark Current, VR = 5 V, TC = 25º C
VR = 5 V
Terminal Capacitance, VR = 5 V, f = 1 MHz, TC = 25º C
Sensitivity, VR = 5 V, λ = 1310 nm
VR = 5 V, λ = 1550 nm
Cut-off Frequency, VR = 5 V, TC = 25º C
Optical Return Loss
SMF
GI-50 Fiber
UNITS
nA
pF
A/W
GHz
dB
MIN
0.78
0.80
2.5
30
28
TYP
0.1
0.7
0.89
0.94
MAX
1.0
20
0.9
California Eastern Laboratories
NR7500 Series
ABSOLUTE MAXIMUM RATINGS1
(TC = 25°C, unless otherwise specified)
SYMBOLS
PARAMETERS
VR Reverse Voltage
IF Forward Current
PIN Optical Input Power
TC Operating Case Temp.
TSTG Storage Temperature
TSLD Lead Soldering Temp.
RH Relative Humidity
(noncondensing)
UNITS
V
mA
mW
°C
°C
°C
%
RATINGS
20
10
8
-40 to +85
-40 to +85
260 (10 sec.)
85
Note:
1. Operation in excess of any one of these parameters may result
in permanent damage.
TYPICAL PERFORMANCE CURVES (TC = 25°C, unless otherwise specified)
WAVELENGTH DEPENDENCE OF
QUANTUM EFFICIENCY
100
80
60
40
20
0
0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7
Wavelength, λ (µm)
TEMPERATURE DEPENDENCE OF
SENSITIVITY
10
λ = 1310 nm
0
-10
-60 -40 -20 0 20 40 60 80 100
Operating Case Temperature, TC (°C)
REVERSE VOLTAGE DEPENDENCE
OF DARK CURRENT
10
1.0
0.1
0.01
TC = 75°C
50°C
25°C
0°C
-25°C
0.001
0
10
Reverse Voltage, VR (V)
20
Remark:The graphs indicate nominal characteristics.
TEMPERATURE DEPENDENCE
OF DARK CURRENT
10
VR = 5 V
1.0
0.1
0.01
0.001
-60 -40 -20 0 20 40 60 80 100
Operating Case Temperature, TC (°C)
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