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부품번호 | C30902 기능 |
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기능 | High-speed solid state detectors | ||
제조업체 | Excelitas | ||
로고 | |||
전체 14 페이지수
DATASHEET
Photon Detection
C30902 and C30921 Series
High-speed solid state detectors for low light level applications
The C30902EH series of avalanche photodiodes is ideal for a wide range of applications,
including LIDAR, range-finding, small-signal fluorescence, photon counting and bar code
scanning.
Excelitas Technologies’ C30902EH series of avalanche photodiodes is fabricated
with a double-diffused “reach-through” structure. This structure provides high
responsivity between 400 and 1000 nm as well as extremely fast rise and fall times
at all wavelengths. The responsivity of the device is independent of modulation
frequency up to about 800 MHz. The detector chip is hermetically-sealed behind a
flat glass window in a modified TO-18 package. The useful diameter of the
photosensitive surface is 0.5 mm.
The C30921EH is packaged in a lightpipe TO-18 which allows efficient coupling of
light to the detector from either a focused spot or an optical fiber up to 0.25 mm in
diameter. The hermetically-sealed TO-18 package allows fibers to be mated to the
end of the lightpipe to minimize signal losses without fear of endangering detector
stability. The C30902EH-2 or C30902SH-2, with hermetic TO-18 package with inline
905nm passband filter and the C30902BH, with hermetic ball lens, complete the
C30902 family.
Key Features
High quantum efficiency: 77%
typical at 830 nm
C30902SH and C30921SH can be
operated in Geiger mode
C30902EH/SH-2 version with
built-in 905 nm filter
C30902BH version with ball-lens
Hermetically sealed package
Low Noise at room temperature
High responsivity – internal
avalanche gains in excess of 150
Spectral response range –
(10% Q.E. points) 400 to 1000 nm
Time response – typically 0.5 ns
Wide operating temperature
range -40°C to +70°C
RoHS compliant
Applications
LIDAR
Range finding
Small-signal fluorescence
Photon counting
Bar code scanning
Both C30902SH and C30921SH are selected C30902EH and C30921EH photodiodes
having extremely low noise and bulk dark-current. They are intended for ultra-low
light level applications (optical power less than 1 pW) and can be used in either
their normal linear mode (Vr < Vbr) at gains up to 250 or greater, or as photon
counters in the “Geiger” mode (Vr > Vbr) where a single photoelectron may trigger
an avalanche pulse of about 108 carriers. In this mode, no amplifiers are necessary
and single-photon detection probabilities of up to approximately 50% are possible.
Photon-counting is also advantageous where gating and coincidence techniques are
employed for signal retrieval.
www.excelitas.com
C30902 and C30921 Series
High-speed solid state detectors for low light level applications
Figure 2 – Typical quantum efficiency vs. wavelength as a function of case temperature
100
-25 ⁰C
25 ⁰C
10
1
500 550 600 650 700 750 800 850 900 950 1000 1050
Wavelength [nm]
Figure 3 – Typical responsivity @ 830nm vs. operating voltage as a function of case temperature
1000
100
10
1
140
160
www.excelitas.com
-40 ⁰C
+20 ⁰C
+60 ⁰C
180 200 220 240 260
Bias Voltage [V]
Page 4 of 14
C30902 and C30921 Series-Rev.1-2014.09
4페이지 C30902 and C30921 Series
High-speed solid state detectors for low light level applications
Figure 8 – Load Line for C30921SH in the Geiger mode
500
450
400
350
300
250
200
150
100
50
0
Vbr
Conducting state (avalanching)
High RL
Low RL
Non-conducting state
(surface dark current only)
Vr
Figure 9 – Typical Dark Count vs. Temperature at 5% Photon Detection Efficiency (830nm)
10000
1000
100
10
-30 -25 -20 -15 -10
-5
0
5
Temperature [°C]
www.excelitas.com
Page 7 of 14
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C30902 and C30921 Series-Rev.1-2014.09
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다운로드 | [ C30902.PDF 데이터시트 ] |
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구매 문의 | 일반 IC 문의 : 샘플 및 소량 구매 ----------------------------------------------------------------------- IGBT, TR 모듈, SCR 및 다이오드 모듈을 포함한 광범위한 전력 반도체를 판매합니다. 전력 반도체 전문업체 상호 : 아이지 인터내셔날 사이트 방문 : [ 홈페이지 ] [ 블로그 1 ] [ 블로그 2 ] |
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DataSheet.kr | 2020 | 연락처 | 링크모음 | 검색 | 사이트맵 |