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PDF S6494 Data sheet ( Hoja de datos )

Número de pieza S6494
Descripción (S6493 - S6495) Photodiode
Fabricantes Hamamatsu 
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PHOTODIODE
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Photodiode array with amplifier
S6493/S6494 series
Photodiode arrays combined with a signal processing circuit chip
S6493 and S6494 series are Si photodiode arrays efficiently combined with a signal processing circuit. The signal processing circuit is formed on
a single chip by the CMOS process, and includes a shift register, clamp circuit, hold circuit and charge amplifier array, thus allowing a simplified
external circuit configuration.
The photocurrent from the photodiode array is fed to the charge amplifier connected to each element and is converted into a voltage.
The signal voltage is then sent to the clamp circuit and hold circuit, and is finally read out from the shift register in turn as a sequential video
signal. The signal readout is performed by means of the charge storage method, so the output is proportional to the amount of light exposure (the
product of incident light level and integration time). The vide output is a boxcar waveform which is low noise and easy to handle.
In addition, the readout gain can be selected from two levels by changing the voltage to the external input terminal. (The "high" gain is 10 times
that of the "low" gain.) S6493 and S6494 series ensure easy operation since they can operate from a 5 V supply, and yet offer a maximum data
rate of 250 kHz.
Features
Applications
l Four types are available
l Image or pattern recognition system
S6493-64: 0.8 mm pitch × 64 ch
S6493-128: 0.4 mm pitch × 128 ch
S6494-64: 1.6 mm pitch × 64 ch
S6494-128: 0.8 mm pitch × 128 ch
l Simultaneous integration by using a charge amplifier array
l Sequential readout with a shift register
l Integrated clamp circuit allows low noise and wide
dynamic range
l Two gain levels can be selected
l Operates from single 5 V supply input
l S6493 series:
Long active area can be configured by use of multiple arrays
phosphor screen type is also available for X-ray detection
l Custom designed element size and pitch available
l Dedicated driver circuits are available
s Mechanical specifications
Parameter
Element pitch
Element diffusion width
Element height
Number of elements
Active area length
*1: Refer to following figure
s Detail of elements
Symbol *1
P
W
H
-
-
S6493-64 S6493-128
0.8 0.4
0.6 0.25
0.8 0.4
64 128
51.2
S6494-64 S6494-128
1.6 0.8
1.3 0.6
1.6 0.8
64 128
102.4
Unit
mm
-
mm
W PHOTODIODE DIFFUSION AREA
P
KMPDC0072EA
1

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S6494 pdf
s Timing chart
Photodiode array with amplifier S6493/S6494 series
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reset
tf ( r) tpw ( r) tr ( r)
t ( h- r)
tr ( h) tpw ( h)
tf ( h)
t ( r- c)
hold
sample
tf ( s2)
tr ( s2)
tf ( s1)
tr ( s1)
tpw ( s1)
clamp
tr ( c) tpw ( c) tf ( c)
tf ( st)
tpw ( st)
st t1 ( st- 1)
tr ( st)
t2 ( st- 1)
1
t1 ( 1- st)
t2 ( 1- st)
tf ( 1) tpw ( 1) tr ( 1)
tr ( 2) tpw ( 2) tf ( 2)
1
2
90 %
Video
tvd
1
EOS
ted
KMPDC0079EA
Parameter
Start pulse width
Rise/fall time of start pulse
Clock pulse (φ1, φ2) width
Rise/fall time of clock pulse (φ1, φ2)
Hold pulse width
Rise/fall time of hold pulse
Reset pulse width
Rise/fall time of reset pulse
Sample pulse (1) width
Rise/fall time of sample pulse (1)
Sample pulse (2) width
Rise/fall time of sample pulse (2)
Clamp pulse width
Rise/fall time of clamp pulse
Sample pulse (1) - hold pulse timing
Hold pulse - reset pulse timing
Reset pulse - clamp pulse timing
Start pulse - clock pulse (φ1, φ2) timing 1
Start pulse - clock pulse (φ1, φ2) timing 2
Clock pulse (φ1, φ2) - start pulse timing 1
Clock pulse (φ1, φ2) - start pulse timing 2
Video delay time
EOS pulse delay time
Symbol
tpw (φst)
tr (φst), tf (φst)
tpw (φ1, 2)
tr (φ1, 2), tf (φ1, 2)
tpw (φh)
tr (φh), tf (φh)
tpw (φr)
tr (φr), tf (φr)
tpw (φs1)
tr (φs1), tf (φs1)
tpw (φs2)
tr (φs2), tf (φs2)
tpw (φc)
tr (φc), tf (φc)
t (φs1-φh)
t (φh-φr)
t (φr-φc)
t1 (φst-φ1)
t2 (φst-φ1)
t1 (φ1-φst)
t2 (φ1-φst)
tvd
ted
Min.
300
0
200
0
1
0
15
0
500
0
tpw (φr)
0
tpw (φr)
0
0
0
0
0
0
0
0
-
-
Typ.
-
20
-
20
-
20
-
20
-
20
-
20
-
20
-
-
-
-
-
-
-
1
100
Max.
-
100
-
100
-
100
-
100
-
100
-
100
-
100
-
-
-
-
-
-
-
-
-
Unit
ns
µs
ns
µs
ns
µs
ns
µs
ns
µs
ns
5

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S6494 arduino
Driver circuit for photodiode array with amplifier C6785, C6495
q CN2: XR2C (made by OMRON)
Pin No.
Signal
1 Vss
2 Vdd
3 Vdd
4 Vdd
5 Vss
6 Video
7 Vss
8 φ1
9 Vdd
10 Vss
11 EOS
12 φ1
13 φ2
14 Vdd
15 φst
16 Vss
17 φ1
18 φhold
19 φ1
20 φclamp
21 φsample
22 φreset
23 Vgain
24 Vdd
25 Vpd
26 Vss
Input/Output
-
Output
Output
Output
-
Input
-
Output
Output
-
Input
Output
Output
Output
Output
-
Output
Output
Output
Output
Output
Output
Output
Output
Output
-
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Description
Sensor ground
Sensor: supply voltage for CMOS IC
Sensor: supply voltage for CMOS IC
Sensor: supply voltage for CMOS IC
Sensor ground
Sensor video signal output
Sensor ground
Sensor: clock pulse for shift register scan
Sensor: supply voltage for CMOS IC
Sensor ground
Sensor: end-of-scan signal
Sensor: clock pulse for shift register scan
Sensor: clock pulse for shift register scan
Sensor: supply voltage for CMOS IC
Sensor: shift register scan start pulse
Sensor ground
Sensor: clock pulse for shift register scan
Sensor: charge amplifier output hold signal
Sensor: clock pulse for shift register scan
Sensor: charge amplifier output clamp signal
Sensor: charge amplifier output sample signal
Sensor: charge amplifier output reset signal
Sensor gain switching: H=gain “low”, L=gain “high”
Sensor: supply voltage for CMOS IC
Reverse voltage for photodiode array
Sensor ground
s Pulse timing
CLK
START
(SAMPLE)
(HOLD)
(CLAMP)
(RESET)
( st)
( 1)
( 2)
TRIGGER
EOS
2 µs MIN.
VIDEO
NOTE: ( ) is INTERNAL SIGNAL
PIXEL NUMBER 1 2 3 4
n-1 n
KACCC0058EA
11

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