
HAMAMATSU PHOTONICS K.K., Solid State Division
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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
1
5
0.25
4 MAX.
SOLDER SIDE
5
(
(7)
THROUGH-HOLE
FOR PHOTODIODE
2$,*****
G
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.
G
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.
G
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
I
Component side diagram
KACCC0136EA
I
Dimensional outline (unit: mm)
KACCA0017EB
I
$
(
$
3$
3$/5
6
3$/5
,
7,
3$/5
892
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8
8
2
2:
$
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