G4176E Datasheet, PDF (2/3 Pages) Hamamatsu Corporation – ULTRAFAST MSM PHOTODETECTORS G4176 SERIES (GaAs)

ULTRAFAST MSM PHOTODETECTORS G4176 SERIES (GaAs)
° ABSOLUTE MAXIMUM RATINGS (Ta=25 C)
Item
Symbol Condition
Value
Unit
Bias Voltage
Vb
-
10
V
Peak Input Light
F Pulse width 1 ns*1
Pulse width 1 ns
50 ^*2
mW
5 ^*2
mW
Operating Temperature Top(a)
-
Storage Temperature Tstg
-
° -40 to +85
C
° -40 to +100 C
*1: Duty ratio should be less than 50 %.(Even if the pulse width is 1 ns, when the duty ratio is >50 %, pulse width > 1ns is applied.)
m *2: This value is under the condition that the light irradiate the whole effective area (200 m ) uniformly.
When the irradiated area is smaller than effective area of the detector, the peak input light becomes smaller in proportional to the irradiate area.
° GENERAL CHARACTERISTICS (Ta=25 C)
Item
Symbol
Spectral Response Range l
l Peak Response Wavelength _p
Effective Sensitive Area A
Chip Size
-
Package
G4176-03
-
G4176-01
Condition
Vb = 7 V
V_b = 7 V
-
-
-
Value
450 to 870
850
0.2 0.2
11
Unit
nm
nm
mm²
mm²
TO-5
(Unified with SMA connector)
-
TO-18
° ELECTRICAL AND OPTICAL CHARACTERISTICS (Ta=25 C, Vb=7 V)
Item
Symbol
Radiant sensitivity _S
Dark Current
Id
NEP ^*3
G4176-03
-
G4176-01
Terminal Capacitance
Condition
l = 850 nm
-
Value
Unit
Min. Typ. Max.
0.2 0.3
-
A/W
-
100 300 pA
l = 850 nm 0.2 X 10^-15 3 X 10^-15
-
W/Hz^1/2
0.2 X 10^-15 4 X 10^-15
-
G4176-03 ^*4
G4176-01
Rise Time
G4176-03
G4176-01
Fall Time
G4176-03
G4176-01
Ct
-
-
-
tr
10 to 90 %
(design value)^*5
-
-
tf
90 to 10 %
(design value)^*5
-
-
0.3 0.4 _pF
0.5 0.6
30
-
ps
50
-
30
-
ps
50
-
*3: Noise Equivalent Power
*4: Value of Chip only
*5: Values excluding response time of light source, bias tee, assembly circuit, oscilloscope etc
Figure 1: Optical Pulse Response
G4176-03
(Including time response of light source, bias tee and oscilloscope)
1.1
(Vb = 7 V)
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
G4176-01
(Including time response of light source, assembly circuit and oscilloscope)
1.1
(Vb = 7 V)
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
Time (0.1 ns/div)
Time (0.1 ns/div)
Figure 2: Spectral Response
10⁰
(Vb = 7 V)
10^-1
10^-2
10^-3
300 400 500 600 700 800 900 1000
Wavelength (nm)