S8550 Datasheet, PDF (1/2 Pages) Wing Shing Computer Components – TRANSISTOR (PNP)

APD
Si APD array
S8550
4 × 8 element APD array with low noise and enhanced short-wavelength sensitivity
S8550 is an APD (avalanche photodiode) array designed for short wavelength detection, featuring low noise and low terminal capacitance. S8550
also offers uniform gain and small cross-talk between each element.
Features
l High sensitivity and low noise in short wavelength region
l Low terminal capacitance
l Optimized for blue light detection
l Uniform gain and low cross-talk variation between
each element
Applications
l Low-light-level photometry in the visible range
l Detector systems combined with scintillator
s General ratings
Parameter
Element size
Element pitch
Package
Window material
Rating
Unit
1.6 × 1.6 (× 32 elements)
mm
2.3
mm
Ceramic
-
Epoxy resin
-
s Absolute maximum ratings
Parameter
Symbol
Value
Unit
Operating temperature
Topr
-20 to +60
°C
Storage temperature
Tstg
-20 to +80
°C
s Electrical and optical characteristics (Ta=25 °C)
Parameter
Symbol
Condition
Min.
Typ.
Max.
Unit
Spectral response range
λ
-
320 to 1000
-
nm
Peak sensitivity wavelength
λp M=50
-
600
-
nm
Quantum efficiency
QE λ=420 nm
60
70
-
%
Breakdown voltage
VBR
-
400
500
V
Dark current
ID per 1 element, M=50
-
10
50
nA
Terminal capacitance
Ct
per 1 element, M=50,
f=10 kHz
-
10
-
pF
Gain
M
-
50
-
-
1