I M A G E S E N S O R
PRELIMINARY DATA
Mar. 2001
S8380/S8381 series
NMOS linear image sensor
NMOS linear image sensors with high IR sensitivity
Features
l High sensitivity in the IR and soft X-ray regions
l Wide active area
Pixel pitch: 50 m (S8380 series)
25 m (S8381 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 Lower power consumption: 1 mW Max.
l Start pulse and clock pulses are CMOS logic compatible
Applications
l Multichannel spectrophotometry
l Image readout system
S8380/S8381 series are designed to have higher sensitivity in the infrared and soft X-ray regions when compared to standard NMOS linear image
sensors. The peak sensitivity wavelength is in the near IR region (
p=750 nm).
The photodiodes of S8380 series have a height of 2.5 mm and are arrayed in a row at a spacing of 50 m. The photodiodes of S8381 series also
have a height of 2.5 mm but are arrayed at a spacing of 25 m. The photodiodes are available in 3 different pixel quantities for each series, 128
(S8380-128Q), 256 (S8380-256Q, S8381-256Q) and 512 (S8380-512Q, S8381-512Q) and 1024 (S8381-1024Q). Quartz glass is the standard
window material.
2.5 mm
1.0 m
1.0 m
400 m
OXIDATION SILICON
N TYPE SILICON
P TYPE SILICON
S8380 SERIES: a=50 m, b=45 m
S8381 SERIES: a=25 m, b=20 m
b
a
KMPDC0020EA
Figure 1 Equivalent circuit
Vss
START
st
CLOCK
CLOCK
1
2
ACTIVE
PHOTODIODE
SATURATION
CONTROL GATE
SATURATION
CONTROL DRAIN
DUMMY DIODE
DUMMY VIDEO
ACTIVE VIDEO
END OF SCAN
DIGITAL SHIFT RESISTER
(MOS SHIFT RESISTER)
Figure 2 Active area structure
KMPDA0125EA
s
Absolute maximum ratings
Parameter
Symbol
Value
Unit
Input pulse (1, 2, st) voltage
V
15
V
Power consumption *
1
P
1
mW
Operating temperature *
2
Topr
-40 to +65
C
Storage temperature
Tstg
-40 to +85
C
*1: V=5.0 V
*2: No condensation
NMOS linear image sensor
S8380/S8381 series
s
Shape specifications
Parameter
S8380-128Q S8380-256Q S8380-512Q S8381-256Q S8381-512Q S8381-1024Q
Unit
Number of pixels
128
256
512
256
512
1024
-
Package length
31.75
40.6
31.75
40.6
mm
Number of pin
22
22
-
Window material *
3
Quartz
Quartz
-
Weight
3.0
3.5
3.0
3.5
g
*3: Fiber optic plate is available.
s
Specifications (Ta=25 C)
S8380 series
S8381 series
Parameter
Symbol
Min.
Typ.
Max.
Min.
Typ.
Max.
Unit
Pixel pitc h
-
-
50
-
-
25
-
m
Pixel height
-
-
2.5
-
-
2.5
-
mm
Spectral response range
(10 % of peak)
200 to 1000
200 to 1000
nm
Peak sensitivity wavelength
p
-
750
-
-
750
-
nm
Photodiode dark current *
4
I
D
-
0.2
0.6
-
0.1
0.3
pA
Photodiode capacitance *
4
Cph
-
20
-
-
10
-
pF
Saturation exposure *
4,
*
5
Esat
-
90
-
-
90
-
mlx s
Saturation output charge *
4
Qsat
-
50
-
-
25
-
pC
Photo response non-uniformity *
6
PRNU
-
-
3
-
-
3
%
*4: Vb=2.0 V, V=5.0 V
*5: 2856 K, tungsten lamp
*6: 50 % of saturation, excluding the start pixel and last pixel
s
Electrical characteristics (Ta=25 C)
S8380 series
S8381 series
Parameter
Symbol
Condition
Min.
Typ.
Max.
Min.
Typ.
Max.
Unit
High V1, V2 (H)
4.5
5
10
4.5
5
10
V
Clock pulse (1, 2)
voltage
Low V1, V2 (L)
0
-
0.4
0
-
0.4
V
High
Vs (H)
4.5
V1
10
4.5
V1
10
V
Start pulse (st) voltage
Low
Vs (L)
0
-
0.4
0
-
0.4
V
Video bias voltage *
7
Vb
1.5
V - 3.0 V - 2.5
1.5
V - 3.0 V - 2.5
V
Saturation control gate voltage
Vscg
-
0
-
-
0
-
V
Saturation control drain voltage
Vscd
-
Vb
-
-
Vb
-
V
Clock pulse (1, 2) rise / fall time *
8
tr1, tr2
tf1, tf2
-
20
-
-
20
-
ns
Clock pulse (1, 2) pulse width
tpw1, tpw2
200
-
-
200
-
-
ns
Start pulse (st) rise / fall time
trs, tfs
-
20
-
-
20
-
ns
Start pulse (st) pulse width
tpws
200
-
-
200
-
-
ns
Start pulse (st) and clock pulse
(2) overlap
tov
200
-
-
200
-
-
ns
Clock pulse space *
8
X
1
, X
2
trf - 20
-
-
trf - 20
-
-
ns
Data rate *
9
f
0.1
-
2000
0.1
-
2000
kHz
-
80 (-128 Q)
-
-
100 (-256 Q)
-
ns
-
120 (-256 Q)
-
-
150 (-512 Q)
-
ns
Video delay time
tvd
50 % of
saturation
*
9,
*
10
-
160 (-512 Q)
-
-
200 (-1024 Q)
-
ns
-
21 (-128 Q)
-
-
27 (-256 Q)
-
pF
-
36 (-256 Q)
-
-
50 (-512 Q)
-
pF
Clock pulse (1, 2)
line capacitance
C
5 V bias
-
67 (-512 Q)
-
-
100 (-1024 Q)
-
pF
-
12 (-128 Q)
-
-
14 (-256 Q)
-
pF
-
20 (-256 Q)
-
-
24 (-512 Q)
-
pF
Saturation control gate (Vscg)
line capacitance
Cscg
5 V bias
-
35 (-512 Q)
-
-
45 (-1024 Q)
-
pF
-
7 (-128 Q)
-
-
10 (-256 Q)
-
pF
-
11 (-256 Q)
-
-
16 (-512 Q)
-
pF
Video line capacitance
C
V
2 V bias
-
20 (-512 Q)
-
-
30 (-1024 Q)
-
pF
*7: V is input pulse voltage (refer to figure 8).
*8: trf is the clock pulse rise or fall time. A clock pulse space of
rise time/fall time - 20
ns (nanoseconds) or more should be
input if the clock pulse rise or fall time is longer than 20
ns (refer to figure 7).
*9: Vb=2.0 V, V=5.0 V
*10: Measured with C7883 driver circuit.
NMOS linear image sensor
S8380/S8381 series
HAMAMATSU PHOTONICS K.K., Solid State Division
1126-1 Ichino-cho, Hamamatsu City, 435-8558 Japan, Telephone: (81) 053-434-3311, Fax: (81) 053-434-5184, http://www.hamamatsu.com
U.S.A.: Hamamatsu Corporation: 360 Foothill Road, P.O.Box 6910, Bridgewater, N.J. 08807-0910, U.S.A., Telephone: (1) 908-231-0960, Fax: (1) 908-231-1218
Germany: Hamamatsu Photonics Deutschland GmbH: Arzbergerstr. 10, D-82211 Herrsching am Ammersee, Germany, Telephone: (49) 08152-3750, Fax: (49) 08152-2658
France: Hamamatsu Photonics France S.A.R.L.: 8, Rue du Saule Trapu, Parc du Moulin de Massy, 91882 Massy Cedex, France, Telephone: 33-(1) 69 53 71 00, Fax: 33-(1) 69 53 71 10
United Kingdom: Hamamatsu Photonics UK Limited: 2 Howard Court, 10 Tewin Road, Welwyn Garden City, Hertfordshire AL7 1BW, United Kingdom, Telephone: (44) 1707-294888, Fax: (44) 1707-325777
North Europe: Hamamatsu Photonics Norden AB: Smidesvgen 12, SE-171 41 Solna, Sweden, Telephone: (46) 8-509-031-00, Fax: (46) 8-509-031-01
Italy: Hamamatsu Photonics Italia S.R.L.: Strada della Moia, 1/E, 20020 Arese, (Milano), Italy, Telephone: (39) 02-935-81-733, Fax: (39) 02-935-81-741
Information furnished by HAMAMATSU is believed to be reliable. However, no responsibility is assumed for possible inaccuracies or omissions.
Specifications are subject to change without notice. No patent rights are granted to any of the circuits described herein. 2001 Hamamatsu Photonics K.K.
Cat. No. KMPD1045E01
Mar. 2001 DN
tvd
tpw 1
tpw 2
tpw s
st
V s (H)
V s (L)
V 1 (H)
V 1 (L)
V 2 (H)
V 2 (L)
1
2
END OF SCAN
st
1
2
tr s
tf s
tr 1
tf 1
X1
X2
t ov
tf 2
tr 2
ACTIVE VIDEO OUTPUT
Figure 7 Timing chart for driver circuit
Figure 8 Video bias voltage margin
4
0
6
8
10
4
5
6
7
8
10
CLOCK PULSE AMPLITUDE (V)
VIDEO BIAS VOLTAGE (V)
2
9
MIN.
VIDEO BIAS RANGE
MAX.
RECOMMENDED BIAS
0.5
0.4
0.3
0.2
0.1
0
200
400
600
800
1000
1200
WAVELENGTH (nm)
PHOTO SENSITIVITY
(A/W)
(Ta=25 C)
STANDARD TYPE
IR HIGH-SENSITIVITY TYPE
S8380/S8381 SERIES
s
Recommended operating conditions
Terminal
Input or output
Description
1, 2
Input
(CMOS logic compatible)
Pulses for operating the MOS shift register. The video data rate is equal to the
clock pulse frequency since the video output signal is obtained synchronously
with the rise of 2 pulse.
st
Input
(CMOS logic compatible)
Pulse for starting the MOS shift register operation. The time interval between
start pulses is equal to the signal accumulation time.
Vss
-
Connected to the anode of each photodiode. This should be grounded.
Vscg
Input
Used for restricting blooming. This should be grounded.
Vscd
Input
Used for restricting blooming. This should be biased at a voltage equal to
the video bias voltage.
Active video
Output
Video output signal. Connects to photodiode cathodes when the address is
on. A positive voltage should be applied to the video line in order to use
photodiodes with a reverse voltage. When the amplitude of 1 and 2 is 5 V,
a video bias voltage of 2 V is recommended.
Dummy video
Output
This has the same structure as the active video, but is not connected to
photodiodes, so only spike noise is output. This should be biased at a
voltage equal to the active video or left as an open-circuit when not needed.
Vsub
-
Connected to the silicon substrate. This should be grounded.
End of scan
Output
(CMOS logic compatible)
This should be pulled up at 5 V by using a 10 k resistor. This is a negative
going pulse that appears synchronously with the 2 timing right after the last
photodiode is addressed.
NC
-
Should be grounded.
10
-5
10
2
10
1
10
0
10
-1
10
-2
10
-3
10
-4
10
-3
10
-2
10
-1
10
0
OUTPUT CHARGE (pC)
EXPOSURE (lx s)
(Typ. Vb=2 V, V =5 V, light source: 2856 K)
S8380 SERIES
S8381 SERIES
SATURATION EXPOSURE
SATURATION
CHARGE
Figure 5 Spectral response (typical example)
Figure 6 Output charge vs. exposure
KMPDB0043EA
KMPDB0161EA
KMPDB0162EB
KMPDC0022EA
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