NR8500 Series
TYPICAL PERFORMANCE CURVES (TC = 25°C, unless otherwise specified)
TEMPERATURE DEPENDENCE OF
DARK CURRENT and MULTIPLIED
DARK CURRENT
MULTIPLICATION FACTOR vs.
REVERSE VOLTAGE
10-6
10-7
103
λ = 1310 nm
ID @ VR = 0.9 V(BR)R
TC = 65°C
102
10-8
TC = -20°C
10-9
I
DM
TC = 25°C
101
10-10
TC = 85°C
10-11
-60
100
0
20
40
60
80
100
-40
-20
0
20
40
60
80
100
Operating Case Temperature, TC (ºC)
Reverse Voltage, VR (V)
CUT-OFF FREQUENCY vs.
MULTIPLICATION FACTOR
FREQUENCY RESPONSE
10
λ = 1310 nm
= 50Ω
M = 8
R
L
1
0.1
0
1.0
2.0
3.0
4.0
5.0
1
10
100
Frequency, f (GHz)
Multiplication Factor, M
TERMINAL CAPACITANCE vs.
REVERSE VOLTAGE
EXCESS NOISE FACTOR vs.
MULTIPLICATION FACTOR
100
50
1310 nm ( ), 1550 nm ( )
f = 35 MHz, B = 1 MHz
2
1
0.5
0.4
20
10
5
0.5
0.2
0.1
2
1
1
2
5
10
20
50
100
1
2
5
10
20
50
100
Reverse Voltage, VR (V)
Multiplication Factor, M
CEL [ CALIFORNIA EASTERN LABS ]
