S8865-256 Datasheet, PDF (6/6 Pages) Hamamatsu Corporation – Photodiode array combined with signal processing circuit chip

Photodiode array with amplifier S8865-256, S8865-256G
s Gain selection terminal voltage setting
Vdd: High gain (Cf: 0.5 pF) GND: Low gain (Cf: 1 pF)
s Readout methods and settings
Signals of channels 1 through 126 are output from CMOS1, while signals of channels 129 through 256 are output from CMOS2.
The following two readout methods are available.
(1) Serial readout method
CMOS1 and CMOS2 are connected in serial and the signals of channels 1 through 256 are sequentially read out from one output
line. Set CMOS1 as in “A” in the table below, and set CMOS2 as in “B”. CMOS1 and CMOS2 should be connected to the same CLK
and RESET lines, and their video output terminals to one line.
(2) Parallel readout method
128 channel signals are output in parallel respectively from the output lines of CMOS1 and CMOS2. Set both CMOS1 and CMOS2
as in “A” in the table below.
s Connection example
Serial readout method
Parallel readout method
RESET
CLK
Vdd
GND
Vref
Vgain
Trig
OR Logic IC
74HC32
EOS
Video
CMOS1
1 Vpd
2 RESET (1)
3 CLK (1)
4 Trig (1)
5 EXTSP (1)
6 Vms (1)
7 Vdd
8 GND
9 EOS (1)
10 Video (1)
11 Vref
12 Vgain
13 Vpd
CMOS2
14 Vpd
15 RESET (2)
16 CLK (2)
17 Trig (2)
18 EXTSP (2)
19 Vms (2)
20 Vdd
21 GND
22 EOS (2)
23 Video (2)
24 Vref
25 Vgain
26 Vpd
KMPDC0222EA
RESET
CLK
Trig1
Vdd
GND
EOS1
Video1
Vref
Vgain
Trig2
EOS2
Video2
CMOS1
1 RESET (1)
2 CLK (1)
3 Trig (1)
4 EXTSP (1)
5 Vms (1)
6 Vdd
7 GND
8 EOS (1)
9 Video (1)
10 Vref
11 Vgain
12 Vpd
CMOS2
1 RESET (2)
2 CLK (2)
3 Trig (2)
4 EXTSP (2)
5 Vms (2)
6 Vdd
7 GND
8 EOS (2)
9 Video (2)
10 Vref
11 Vgain
12 Vpd
KMPDC0223EA
Type
A
B
Vms
Vdd
GND
EXTSP
Vdd
Preceding sensor EOS should be input
s Readout circuit
Check that pulse signals meet the required pulse conditions before supplying them to the input terminals.
Video output should be amplified by an operational amplifier that is connected close to the sensor.
s Cautions during use
(1) The signal processing circuit chips of S8865 series are protected against static electricity. However, in order to prevent
possible damage to the chip, implement electrostatic countermeasures such as grounding of the operator, work table and
tools. Furthermore, the devices must be protected against surge voltages from external equipment.
(2) Since the photodiode array chip is not protected, handle it carefully so it will not become contaminated or scratched.
Photodiode array performance may deteriorate if operated at high temperatures and humidity, so the housing should be
designed to be airtight. The signal processing circuit chip and its wire bonding are covered with a resin coating for
protection, but never touch these portions. In addition, take care when installing the board so that it does not warp.
(3) S8865-256G
Signal processing IC chip performance will drop if subjected to X-rays. Protect the IC chip from X-rays by installing a lead
shield.
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. ©2006 Hamamatsu Photonics K.K.
HAMAMATSU PHOTONICS K.K., Solid State Division
1126-1 Ichino-cho, Higashi-ku, Hamamatsu City, 435-8558 Japan, Telephone: [phone], Fax: [phone], www.hamamatsu.com
U.S.A.: Hamamatsu Corporation: 360 Foothill Road, P.O.Box 6910, Bridgewater, N.J. 08807-0910, U.S.A., Telephone: [phone], Fax: [phone]
Germany: Hamamatsu Photonics Deutschland GmbH: Arzbergerstr. 10, D-82211 Herrsching am Ammersee, Germany, Telephone: [phone], Fax: [phone]
France: Hamamatsu Photonics France S.A.R.L.: 19, Rue du Saule Trapu, Parc du Moulin de Massy, 91882 Massy Cedex, France, Telephone: [phone], Fax: [phone]
United Kingdom: Hamamatsu Photonics UK Limited: 2 Howard Court, 10 Tewin Road, Welwyn Garden City, Hertfordshire AL7 1BW, United Kingdom, Telephone: [phone], Fax: [phone]
North Europe: Hamamatsu Photonics Norden AB: Smidesvägen 12, SE-171 41 Solna, Sweden, Telephone: [phone], Fax: [phone]
Italy: Hamamatsu Photonics Italia S.R.L.: Strada della Moia, 1/E, 20020 Arese, (Milano), Italy, Telephone: [phone], Fax: [phone]
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Cat. No. KMPD1087E01
Jul. 2006 DN