Features
l Low noise
l Compact and lightweight
l Easy handling
Applications
l Detection of X-rays, radiation, high energy particles
M O D U L E
Charge amplifier
For radiation and high energy particle detection
H4083
H4083 is a low-noise hybrid charge amplifier designed for a wide range of spectrometric applications including soft X-ray and low to high energy
gamma-ray spectrometry. The first stage of this amplifier uses a low-noise junction type FET, which exhibits excellent performance when used
with a photodiode having a large junction capacitance. H4083 is especially suited for use with Hamamatsu S3590/S3204 series, etc. Si PIN
photodiodes. S3590 series photodiodes can be directly mounted on the backside of H4083, so there will be no increase in stray capacitance.
H4083 is compact and lightweight, making detector design and development more flexible.
GAIN
CAL
GND
THROUGH-HOLE B
THROUGH-HOLE A
IN
-12 V
OUT
+12 V
2 pF
50 M
0.01 F
1.5 pF
,
,
s Equivalent circuit
KACCC0019EA
s
Specification
Parameter
Specification
Amplification method
Charge-sensitive type
Input/output polarity
Inverted
0.5 V/pC
Charge gain
22 mV/MeV (Si)
Noise characteristic
550 electrons/FWHM
Negative feedback constant
50 M//2 pF
Power supply
12 V
Power consumption
150 mW
Configuration
9-pin, single line type
Dimensional outline
24 (W) 19 (H) 4 (T) mm
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.
Charge amplifier
H4083
Cat. No. KACC1053E01
Apr. 2001 DN
COMPONENT SIDE
(8 ) 2.54
0.5
19 MAX.
5 MIN.
0.25
4 MAX.
SOLDER SIDE
5
(7)
(7)
THROUGH-HOLE
FOR PHOTODIODE
The left end pin is designated No. 1 when viewed from the component side with the pins facing downwards.
q Using pin No. 2
Use pin No. 2 when changing the feedback constant which is typically 50 M
/2 pF. Connect feedback resistance and capaci-
tance between pin No. 2 and No. 9. Note that this connection is made parallel to the internal feedback resistance and capaci-
tance.
q Changing the feedback resistance and capacitance
If you want to change the feedback constant without making
parallel connections, directly replace the resistor (Rf) and ca-
pacitor (Cf) shown at the right, which serve as feedback resis-
tance and capacitance.
Replacement components shoud be 2012 size.
q Using through-holes A and B
When H4083 is not covered with protective coating, a photo-
diode (such as S3590 series) can be directly soldered on the
board. In this case, insert the photodiode leads into the through-
holes from the solder side.
1
2
3
4
5
6
7
8
9
Cf
Rf
s Component side diagram
KACCC0136EA
s Dimensional outline (unit: mm)
KACCA0017EB
s
Pin connection
Pin No.
Symbol
Content
IN
Input terminal
GAIN
Feedback constant adjustment terminal
GND *
Input ground terminal
CAL
Last pulse input terminal
GND *
Power and output ground terminal
-12 V
Power terminal
+12 V
Power terminal
GND *
Output ground terminal
OUT
Output terminal
Through-hole A
P
Anode connection terminal
Through-hole B
N
Cathode connection terminal
* GND is internally connected.
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