P3207-07 Ver la hoja de datos (PDF) - Hamamatsu Photonics
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P3207-07 Datasheet PDF : 5 Pages
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PbSe photoconductive detectors
P9696 series, P3207-07
S/N vs. supply voltage (P9696-02)
1600
1400
1200
1000
800
Light source: black body 500 K
Incident energy: 16.7 μW/cm2
Chopping frequency: 600 Hz
Frequency bandwidth: 60 Hz
Supply voltage is the
value which contains
load resistance.
S (Signal)
(Typ. Ta=25 °C)
20
15
10
600
N (Noise)
400
5
200
0
0
0
20
40
60
80 100 120
Supply voltage (V)
KIRDB0440EA
Photo sensitivity vs. element temperature
103
(Typ. Ta=25 °C)
Light source: black body 500 K
Supply voltage: 15 V
Incident energy: 16.7 μW/cm2
Chopping frequency: 600 Hz
102
S/N vs. chopping frequency
104
Light source: black body 500 K
Incident energy: 16.7 μW/cm2
Supply voltage: 15 V
103
S/N
(Ta=25 °C)
S (Signal)
102
N (Noise)
101
100
101
102
103
Chopping frequency (Hz)
KIRDB0441EA
Increasing the chopping frequency reduces the
1/f noise and results in an S/N improvement. The
S/N can also be improved by narrowing the noise
bandwidth using a lock-in ampli¿er.
Dark resistance, rise time vs. element temperature
103
(Typ. Ta=25 °C)
102
Rise time
Dark resistance
101
-20 -10 0
10 20 30 40 50
Element temperature (°C)
KIRDB0442EA
Cooling the device enhances its sensitivity, but the
sensitivity also depends on the load resistance in
the circuit.
101
-20 -10 0
10 20 30 40 50
Element temperature (°C)
KIRDB0443EA
3
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