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參數(shù)資料
| 型號： | S3924-256Q |
| 廠商： | Hamamatsu Photonics |
| 英文描述： | NMOS linear image sensor Voltage output type with current-integration readout circuit and impedance conversion circuit |
| 中文描述： | NMOS管線性圖像傳感器電壓輸出型電流集成讀出電路和阻抗轉(zhuǎn)換電路 |
| 文件頁數(shù)： | 1/6頁 |
| 文件大?。?/td> | 244K |
| 代理商： | S3924-256Q |
NMOS linear image sensors are self-scanning photodiode arrays designed specifically as detectors for multichannel spectroscopy. The scanning
circuit is made up of N-channel MOS transistors, operates at low power consumption and is easy to handle. Each photodiode has a large active
area, high UV sensitivity yet very low noise, delivering a high S/N even at low light levels. NMOS linear image sensors also offer excellent output
linearity and wide dynamic range.
S3921/S3924 series have a current-integration readout circuit utilizing the video line and an impedance conversion circuit. The output is available
in boxcar waveform allowing signal readout with a simple external circuit.
The photodiodes of S3921 series have a height of 2.5 mm and are arrayed in a row at a spacing of 50 μm. The photodiodes of S3924 series also
have a height of 2.5 mm but are arrayed at a spacing of 25 μm. The photodiodes are available in 3 different pixel quantities for each series, 128
(S3921-128Q), 256 (S3921-256Q, S3924-256Q) and 512 (S3921-512Q, S3924-512Q) and 1024 (S3924-1024Q). Quartz glass is the standard
window material.
Features
l
Built-in current-integration readout circuit utilizing
video line capacitance and impedance conversion
circuit (boxcar waveform output)
l
Wide active area
Pixel pitch: 50 μm (S3921 series)
25 μm (S3924 series)
Pixel height: 2.5 mm
l
High UV sensitivity with good stability
l
Low dark current and high saturation charge allow a long
integration time and a wide dynamic range at room temperature
l
Excellent output linearity and sensitivity spatial uniformity
l
Low voltage, single power supply operation
l
Start pulse, clock pulse and video line reset pulse are
CMOS logic compatible
Figure 1 Equivalent circuit
Applications
l
Multichannel spectrophotometry
l
Image readout system
I M A G E S E N S O R
NMOS linear image sensor
S3921/S3924 series
Voltage output type with current-integration readout circuit and impedance conversion circuit
b
a
2
1
1
4
OXIDATION SILICON
P TYPE SILICON
N TYPE SILICON
S3921 SERIES: a=50 μm, b=45 μm
S3924 SERIES: a=25 μm, b=20 μm
Vss
START
CLOCK
st
CLOCK
1
2
ADDRESS
SWITCH
ACTIVE
PHOTODIODE
ADDRESS
SWITCH
DUMMY DIODE
RESET SWITCH
RESET
RESET V
ACTIVE VIDEO
END OF SCAN
SOURCE FOLLOWVdd
DIGITAL SHIFT RE
G
ISTER
(MOS SHIFT RE
G
ISTER)
SATURATION
CONTROL GATE
CONTROL DRAIN
DUMMY VIDEO
Figure 2 Active area structure
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