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Hamamatsu Corporation

C4890 Datasheet Preview

C4890 Datasheet

Pin photodiode amplifier

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PHOTODIODE
PIN photodiode amplifier
C4890
Wide bandwidth amplifier (1.5 GHz, 20 dB)
C4890 wide-band amplifier, when connected to a high-speed PIN photodiode (S5791, S5972, S5973, etc.) converts optical signals at a maximum
of 1.5 GHz into voltage outputs with exceptionally low distortion and 20 dB gain.
C4890 can also be combined with other types of PIN photodiodes and APDs (avalanche photodiodes) to serve as a high-frequency amplifier for
optical measurements in a wide range of fields including industry and research applications.
Features
l Wide bandwidth, high gain, flat gain spectrum
l Flat, low group delay characteristics and low noise
l Input/output impedance: 50
l Small size, light weight, low price
l Single power supply operation (+12 V)
Applications
l High frequency amplifier for measurement
l PIN photodiode evaluation
s Absolute maximum ratings
Parameter
Supply voltage
Input voltage
Operating temperature
Storage temperature
Condition
Continuation RF input
DC
Value
+13.5
+15
+1.25
0 to +60
-10 to +70
s Electrical characteristics (Ta=25 °C, Vcc=12 V, Input/output is terminated with 50 load.)
Parameter
Condition
Min. Typ. Max.
Cut-off frequency
(-3 dB)
High band
Low band
1.0 1.5
-
- 5 10
Gain
f=1.0 GHz
18 20
-
Gain deviation within bandwidth f=10 MHz to 1.0 GHz
- ±1.0 -
Group delay time
- 700 -
VSWR
Input
Output
f=1.0 GHz
- 1.1 -
- 1.5 -
1 dB compression point
-7-
Rise time
- 240 -
Noise figure
-8-
Current consumption
- 45 -
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Unit
V
dBm
V
°C
°C
Unit
GHz
MHz
dB
dB
ps
dB
dB
dBm
ps
dB
mA




Hamamatsu Corporation

C4890 Datasheet Preview

C4890 Datasheet

Pin photodiode amplifier

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www.DataSheet4U.com
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
(dB)
Damp rate
(%)
R1, R2
()
R3
()
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.
www.DataSheet4U.com 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: (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: Smidesvägen 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
Cat. No. KACC1055E01
Apr. 2001 DN


Part Number C4890
Description Pin photodiode amplifier
Maker Hamamatsu Corporation
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C4890 Datasheet PDF






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