s3924-512q Hamamatsu Photonics, K.K.,, s3924-512q Datasheet

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s3924-512q

Manufacturer Part Number
s3924-512q
Description
Nmos Image Sensors
Manufacturer
Hamamatsu Photonics, K.K.,
Datasheet
I M A G E S E N S O R
NMOS linear image sensor
S3921/S3924 series
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.
CLOCK
CLOCK
Figure 1 Equivalent circuit
SATURATION
CONTROL GATE
SATURATION
CONTROL DRAIN
START
DUMMY DIODE
ACTIVE
PHOTODIODE
l
l
l
l
l
l
l
Voltage output type with current-integration readout circuit and impedance conversion circuit
st
1
2
ADDRESS
SWITCH
Features
ADDRESS
SWITCH
Built-in current-integration readout circuit utilizing
video line capacitance and impedance conversion
circuit (boxcar waveform output)
Wide active area
Pixel pitch: 50 µm (S3921 series)
Pixel height: 2.5 mm
High UV sensitivity with good stability
Low dark current and high saturation charge allow a long
integration time and a wide dynamic range at room temperature
Excellent output linearity and sensitivity spatial uniformity
Low voltage, single power supply operation
Start pulse, clock pulse and video line reset pulse are
CMOS logic compatible
φ
DIGITAL SHIFT RESISTER
(MOS SHIFT RESISTER)
φ
25 µm (S3924 series)
φ
RESET SWITCH
RESET
SOURCE FOLLOWER CIRCUIT
RESET V
END OF SCAN
φ
DUMMY VIDEO
ACTIVE VIDEO
Vdd
Vss
KMPDC0019EA
l
l
Figure 2 Active area structure
Applications
Multichannel spectrophotometry
Image readout system
OXIDATION SILICON
S3921 SERIES: a=50 µm, b=45 µm
S3924 SERIES: a=25 µm, b=20 µm
P TYPE SILICON
N TYPE SILICON
b
a
KMPDA0067EA

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s3924-512q Summary of contents

Page 1

... 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. ...

Page 2

... S3921/S3924 series φ φ φ φ φ φ φ φ φ φ µ lx φ φ φ φ φ Ω ...

Page 3

... NMOS linear image sensor ACTIVE AREA 12.8 × 2.5 PHOTOSENSITIVE SURFACE 0.25 10.16 KMPDA0060EA Figure 4 Pin connection PHOTOSENSITIVE SURFACE 0.25 10.16 KMPDA0062EA S3921/S3924 series S3921-256Q, S3924-512Q 6.4 ± 0.3 PHOTOSENSITIVE 31.75 SURFACE 0.51 0.25 2.54 25.4 10.16 * Optical distance from the outer surface of the quartz window to the chip surface ...

Page 4

... Applying a pulse signal to the saturation control gate triggers all reset. (See “Auxiliary functions”.) S3921/S3924 series φ Ω φ (Typ. Reset V=2.5 V, Vdd=5 light source: 2856 SATURATION VOLTAGE -1 10 S3924-256Q -2 10 S3924-512Q S3924-1024Q -3 10 SATURATION EXPOSURE - EXPOSURE (lx · ...

Page 5

... RESET tfr Signal readout circuit S3921/S3924 series include a current integration circuit uti- lizing the video line capacitance and an impedance conver- sion circuit. This allows signal readout with a simple external circuit. However, a positive bias must be applied to the video line because the photodiode anode of NMOS linear image sensors (Vss). This is done by adding an appropriate pulse to the reset φ ...

Page 6

... In normal operation, the accumulated charge in each photodiode is reset when the signal is read out. Besides this method that uses the readout line, S3921/S3924 series can reset the photodiode charge by applying a pulse to the saturation control gate. The amplitude of this pulse should be equal to the φ1, φ2, φst, Reset φ pulses and the pulse width should be longer than 5 µs. ...

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