C4890 Datasheet, PDF (2/2 Pages) Hamamatsu Corporation – Pin photodiode amplifier

s Gain vs. frequency
30
20
10
0
0
0.5
1.0
1.5
FREQUENCY (GHz)
s Dimensional outline (unit: mm)
7
40
7
2.0
KACCB0038EA
WIDEBAND AMPLIFIER
C4890
No.
Vcc=12V
GND
(2 ×) SMA JACK
PIN photodiode amplifier C4890
s Group delay time vs. frequency
2
1
0
0
0.5
1.0
1.5
2.0
FREQUENCY (GHz)
KACCB0039EA
30
(4 ×) M3 (d-5)
20
KACCA0034EA
s Application example: High-speed O/E converter module
s Connection example
A high-sensitivity O/E converter can be easily configured by
using C4890 in conjunction with a high-speed PIN photodiode
(S5973, etc). The following is an example when C4890 is used
with S5973 to amplify the output signal after receiving an
attenuator. Major performance items are shown below.
Effective bandwidth: 5 MHz to 1.5 GHz
The lower limit is determined by the amplifier (C4890)
and the upper limit by the photodiode.
Conversion sensitivity (V/W) = 0.5 A/W × 50 × (100 - α)/100 × 10 (λ=850 nm)
C4890 gain
Attenuator damp rate
Attenuator input impedance
Photodiode photoelectric sensitivity
Detection limit: 4.4 µWrms (λ=850 nm, BW=1.5 GHz)
Depends on the amplifier NF (NF=8 dB Typ.).
+12
10 k
0.1 µ
PHOTODIODE
ATTENUATOR
R1
R2
SMA
R3
+12
C4890
SMA
Vout
Resistance value according to the attenuator damp quantity
Damp quantity Damp rate
R1, R2
R3
(dB)
(%)
(Ω)
(Ω)
0
0
0
50
3
30
8.2
150
6
50
16
68
10
70
27
36
KPINC0003EB
The above specifications are typical values and not guaranteed.
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.
HAMAMATSU PHOTONICS K.K., Solid State Division
1126-1 Ichino-cho, Hamamatsu City, 435-8558 Japan, Telephone: [phone], Fax: [phone], 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: [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.: 8, 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]
Cat. No. KACC1055E01
Apr. 2001 DN